Can I use the same comb on more than one person?
Of course, and you can sterilize the comb between uses. Bring water to a boil and turn off heat. Place the comb in water for at least 10 minutes, then carefully remove.
Yes, the NitDuo is included inside the Licefreee Ultimate Family Kit
You can use it as often as you like. It is helpful to do a daily comb-through to be sure you have removed all lice and nits during the first 7-10 days after treatment.
Licefreee Spray will kill lice within minutes but will take longer to kill the nits (eggs). This is why the directions say to allow your hair to air dry naturally. This makes sure the product is in contact with the nit long enough to kill it.
Allow Licefreee Spray! to air dry naturally before beginning the combing process. If you find you need to wet down the hair to make it easier to comb, you can apply more Licefreee Spray! to aid during the comb through process or apply a leave-in detangler or conditioner. It is not necessary to wash the hair before coming out the dead lice and nits, but you may wash it first if desired.
There are many home remedies out there that, for the most part, simply don’t work and can be dangerous. Gasoline or kerosene is dangerous because of the possibility of ignition and inhalation of fumes. Methods using tea tree oil, olive oil, petroleum jelly, margarine or mayonnaise are messy, time-consuming and inconvenient. Head shaving is unnecessary and would probably upset your child. As for garden insecticide sprays, they are very dangerous for your family, including your family pets.
If you have treated your child with Licefreee Spray and then they are exposed to head lice again, they may be re-infested. You can help by teaching your children not to share personal items like hair brushes and hats with other children.
As far as we know, there have not been any clinical studies proving any human population to be immune to head lice. However, head lice can have difficultly attaching their eggs to hair that is thick or coarse; therefore, those individuals may be less likely to experience head lice infestation.
No, Licefreee has not been tested to be an effective scabies treatment. You should consult a physician or pharmacist for proper treatment.
Body lice and head lice are different species of lice, and head lice normally do not spread from your hair to the rest of your body. They can infest eyebrows and eyelashes, however. If this happens, consult your doctor.
Using hair conditioner prior to treating with Licefreee Spray should not affect the treatment. However, if you feel that you have an excess of product built up in your hair, we would recommend washing and allowing your hair to dry, prior to application.
Licefreee Spray is intended for use as a head lice treatment only. Washing hair regularly is recommended to avoid product build-up. If you are re-infested, we would recommend treat again.
No. It is important that you follow the directions for Licefreee Spray exactly as indicated on the label. It is never recommended to mix OTC treatments or medications. Not only could mixing products cause potentially harmful effects, it could also hinder the effectiveness of the products.
Being that Licefreee Spray kills lice and nits while it dries, pulling hair up may interfere with the drying process. If you must pull hair up, be sure to secure it loosely on top of the head.
No. Licefreee Spray! does not require the use of a shower cap. For best results, please follow the directions exactly as they are written on the label.
Yes, it is acceptable to use the same bottle of Licefreee Gel to complete a second treatment 7-10 days after the first application. When storing the excess product, be sure to tightly seal the cap and keep the product in a dry location between 59-86°F.
Yes, Licefreee Home can be sprayed on all mattresses.
Yes, before spraying, test an inconspicuous area for compatibility first. Be sure to allow surfaces to dry before resuming use.
Once you've rinsed Licefreee Everyday Shampoo from your hair as directed, you may style your hair as you normally would.
Yes, although, Licefreee Home should not be ingested or inhaled, and contact with eyes should be avoided.
We do not recommend using Licefreee Home around your pets, or on their beds.
No, Licefreee Home is not intended for use on clothing. Wash any clothing that might be infested with lice in the washing machine in warm or hot water, then dry on medium to high heat. If clothing cannot be washed or dried, have the items dry cleaned or place them in a tightly sealed plastic bag for 10-14 days.
Consult your physician first. All ingredients are GRAS (generally recognized as safe). However, during pregnancy, you are more likely to develop allergies, which is why it is important to talk with your doctor before use.
Our product has not been tested on color-treated hair, if you’re concerned, test the product in an inconspicuous area before application.
It is not necessary to use both treatments, however, it is safe to use one (Licefreee Gel or Licefreee Spray) and do a follow-up treatment (usually 7-10 days after the first) with the other product. Both products are non-toxic and homeopathic and are effective in killing both lice and nits.
Our product has not been tested on color-treated hair, if you’re concerned, test the product in an inconspicuous area before application.
No, Licefreee Home is not intended for use on the head. To treat lice on the head and scalp, we recommend using Licefreee Spray or the Licefreee Kit.
We always recommend testing a small, inconspicuous area for compatibility before use.
No. According to label directions, Licefreee Spray should be applied to dry hair. Applying to wet hair could dilute the solution and possibly interfere with the effectiveness of the product.
Yes, you can use any Licefreee treatment after using other lice treatments. Just make sure the other treatment is completely washed from the hair first to avoid any potential interaction.
Yes; Licefreee Spray! is indicated for use on children 6 months and older.
Our product has not been tested on color-treated hair, if you’re concerned, test the product in an inconspicuous area before application.
Yes, you can use a detangler while using Licefreee Everyday Shampoo.
Consult your physician first. All ingredients are GRAS (generally recognized as safe). However, during pregnancy you are more likely to develop allergies, which is why it is important to talk with your doctor before use.
No head lice do have wings, and do not fly. They are transferred from head to head contact or thru items like hats, brushes, pillows and anything else which may come in conctact with your head. Lice eggs (nits) take up to 14 days to hatch. We recommend completing the treatment and do follow up head checks for the next 14 days. If you find any live lice during that time we recommend completing the treatment again.
It is unlikely, as ocean water does not have a high enough concentration of salt nor does it provide a proper delivery method to effectively kill head lice and nits. Ocean salt water has not been tested by Tec Labs to be proven effective.
It is unlikely lice will become immune to Licefreee products, since they are different from conventional pesticides that affect a louse's nervous system, and to which lice have shown resistance.
As far as furniture and clothing goes, Licefreee Spray! was not developed to be used on inanimate objects. The conditioners in it may stain or cause oil spots. A thorough vacuuming should take care of any lice on there, or you can use Licefreee Home which is designed to kill lice on furniture and bedding. If you have throw pillows, bag them up for 10 days to make sure the lice are dead, or you can throw them in your dryer on the hottest setting to kill the lice.
No. Animal lice do not affect humans and vice versa. The type of lice that affect birds and the type that affect humans are different species, and host-specific.
Licefreee Spray! is great for treating yourself as it kills both the lice as well as the eggs (nits). Most products recommend having someone help with the comb-out process. Because Licefreee Spray is able to kill the eggs, combing is not required.
Yes, you can sleep with Licefreee Spray on your hair. You can leave it in for as long as you like.
Licefreee Spray is still effective if you went to sleep while it was still wet. Allow it to finish drying before washing it out.
Yes, you may use any conditioner or detangler while using Licefreee Everyday Shampoo.
Head lice treatments may be irritating to the scalp causing it to itch. If you do not see live lice in the hair, it is not necessary to apply any more treatments. Use a soothing shampoo and cream rinse or conditioner to help with irritation.
No, human lice do not typically affect pets. In fact, lice are host-specific.
Other hair care products should not interfere with the effectiveness of Licefreee Everyday Shampoo when used as directed on the label.
No, head lice do not jump as they are not equipped with legs made for jumping (like fleas). Rather, head lice were built to crawl quickly. See our post about lice versus fleas, and other pests.
The reason most companies say to do a second treatment in 7-10 days is because nits will hatch within that time frame and then the lice infestation starts again. However, if you use the Licefreee Everyday Shampoo for two weeks it will kill any lice that hatch; that is if any of them were not hit with Licefreee Spray as the spray does kill the nits as well.
It is not necessary, but you certainly can open the windows to allow airflow if desired.
No, it is not necessary to wash out a little to moderate amount of styling product before using the spray. If there is a large amount, or a strong-hold product, such as spiking gel, it would be best to wash it out of your hair first, dry, and then treat with Licefreee Spray. This will allow the product to work to its full potential without interference.
It seems you have purchased Licefreee! Gel and Licefreee! Everyday Shampoo in our Licefreee! Kit. Yes, you can continue to wash the hair with Licefreee Everyday Shampoo for the next 10-12 days, or until the shampoo is gone if you would like to use it longer.
Yes, you do! Our patented stainless steel nit comb (designed with the help of school nurses) is included with our treatments, Licefreee Spray! & Licefreee! Gel, to help remove dead lice and nits.
No, gloves are not required when treating with Licefreee Spray, or any other Licefreee products.
Licefreee Home has only been tested for use on lice at this time.
Licefreee Home kills lice by contact; a second treatment should be applied within 7-10 days to kill any newly hatched lice.
No, Licefreee Gel should not affect your natural hair color. However, it may fade color-treated hair.
Yes, Licefreee Gel does kill the eggs as well as long as the product is fully in contact with the egg for a full hour. However, it is best practice to remove all of the eggs using the included nit comb just in case the product did not fully come in contact with that egg. Also note you can use the nit comb without doing a full treatment over the next few days just in case you missed any nits during the comb through. They can be tough to find.
Licefreee Gel has not been tested to work on fleas. Some of the ingredients, although non-toxic to humans, may not be safe to use on your pets so you should always consult your vet before using any products on your pets.
No, the Environmental Protection Agency (EPA) does not require an expiration date. As a rule of thumb, products should be discarded and replaced 3 years after the purchase date. REMINDER: Shake Licefreee Home well before use.
Licefreee Spray does not break down the protein that lice use to attach nits to your hair strand. To effectively remove the nits and dead lice, use the stainless steel nit comb included with the treatment. It is designed with special close-fitted teeth that are small enough to remove the nits from the hair strand. See our guide How to Use a Lice Comb.
Licefreee Spray has an expected shelf life of 3 years. We recommend that any unused product purchased from an authorized retailer be discarded after 3 years.
Yes, Licefreee Spray kills head lice and their eggs. No, Licefreee has not been tested for use on bed bugs.
Licefreee Spray kills the nits as long as they come in contact with the product. Be sure to saturate the hair well and allow it to air dry and they should be dead.
Head lice require a live, human host in order to feed and survive. However, lice may become dislodged or crawl from the head onto toys or stuffed animals when in close contact with your child. It is recommended that such items be placed in a plastic bag and tightly sealed for 10-14 days.
No, your hair does not have to be washed before using Licefreee. With the gel, you want to apply it to dry hair, and fully saturate your hair with the product. The gel stays in for an hour. If you would like, you can shampoo your hair with your regular shampoo after you finish the treatment.
No; Licefreee Spray starts killing lice and nits that come into full contact with the product when it is applied to the hair and scalp. After the hair has dried (naturally), the treatment is complete. The 7-10 day window is a recommended time frame to perform daily head checks in case a louse or egg is missed during the treatment and causes a reinfestation. If during a head check, a live bug or new nits appear, it is recommended to perform a second treatment.
Licefreee products do not require expiration dates and should be effective for several years. As a rule of thumb for all products without expiration dates, if you have had the product for at least three years, you should replace it with new product.
If you are unsure how old the product is, please look on the side of the bottle for a batch code. It will be 4-5 characters and be a combination of letters and numbers such as G1081. Send us an email via our contact form with the batch code and we can let you know how old the product is.
Yes, the scent will slowly fade after application.
It is impossible to tell with the naked eye if a nit is dead or alive, but our studies have shown that the nits die when treated with Licefreee Spray. That being said, all of the nits have to be saturated with the treatment for the length of time recommended in the directions in order to die. There is a possibility that one was missed. Also dead nits will not fall off the hair follicle, they will stay attached and grow out with your hair if you do not remove them. We are happy to see it sounds like you did everything correctly and you were successful in ending your head lice infestation!
It may take a couple of washes, but the scent of Licefreee will eventually fade.
For helpful hints and tips for successful product application, how to get rid of lice in the house, and preventing a re-infestation, visit our resource guides for more information.
Because Licefreee head lice treatments are effective in killing eggs as well as live bugs, you can choose to leave the eggs (nits) in the hair. However, if you desire, you can remove lice eggs with the stainless steel nit comb provided with the product, or with your fingernails.
Licefreee Spray contains sodium chloride, a homeopathic ingredient. It does not chemically affect the nervous system the way traditional pesticides do.
Great question! A female louse can lay up to 100 eggs in her lifetime of approximately 30 days. A nit (egg) incubates for 10-14 days, when the nit hatches it becomes a nymph; it takes 7-10 days for a nymph to evolve into a sexually mature adult louse (capable of laying eggs).
You can go swimming anytime after washing the Licefreee Gel out of her hair.
Once the hair has dried naturally the treatment is complete and you (or your child) can go swimming. However, we recommend washing the hair first to remove any loose, dead lice so they aren’t floating in the pool.
We tell you to leave Licefreee Gel on the hair for at least 60 minutes to make sure that all the lice and nits are dead. You should leave the gel in while you comb out the nits. You will want to wash it out afterwards so that the gel doesn't dry on the hair as this will make combing / brushing the hair difficult. This is also why we include a shower cap, to keep it moist. There is no reason to leave it on longer than 60 minutes as this will not increase the effectiveness.
You can use the nit comb as often as you'd like. After an infestation, it's a good idea to perform head checks for 7-10 days post-treatment. If you continue to find nits, keep combing until you no longer find any.
Wait until the couch has dried completely after application, then you may resume use.
Drying time can vary depending on the material of the objects that are treated and the temperature of the room/environment.
Drying time when using Licefreee Spray depends on several factors including the hair type, thickness and length; therefore, drying time can vary from person to person.
Although Licefreee Spray is non-toxic and safe to use as often as you like, it is not necessary to apply the treatment more than one time in a day. It is better to continue to use the nit comb daily to remove any nits you may see in the hair since it may be difficult to find them all in one session. We recommend using Licefreee within 7-10 days to make sure all lice have been killed, or if you see new lice in the hair.
The number of treatments in the Licefreee Spray 12 OZ. bottle depends on the hair length and thickness of the individual being treated.
It all depends on hair length, texture, and thickness. You want to be sure to use enough product to fully saturate all of the hair and scalp.
Enough to fully saturate all of the hair and scalp. The amount of Licefreee Spray needed depends on the length, texture, and thickness of the hair. It may require more than one bottle.
Spray until the surface is visibly wet, approximately one ounce per 2.5 square feet.
Spray after initial head lice infestation, then again in 7-10 days to treat any newly hatched lice, or if reinfestation occurs.
After using Licefreee Spray, as soon as your hair finishes drying naturally, (you don’t want to blow-dry to make sure the product stays in contact with the lice) you can wash it with your regular shampoo.
You can dye your hair any time after washing the Licefreee Gel out of your hair.
You can wash your hair anytime after you have completed the treatment. You can use your regular shampoo or if you want to help prevent lice infestations you can use Licefreee Everyday Shampoo.
The telltale sign is an itchy head. Scratching the itch could lead to sores on the scalp or around the neck and ears. Severe cases may cause swollen lymph glands. Other signs may include eggs and, in some cases, live lice in the hair, frequent head scratching, loss of sleep, shortened attention span and depression.
As long as you applied the product according to the label directions, everything it came into full contact with should be dead. There are a number of reasons you could still be feeling itchy:
- You've treated with more than one treatment before using Licefreee. Repeated treatments can cause the scalp to dry out and feel itchy.
- The active ingredient in Licefreee is salt, therefore it is possible that it can dry the scalp a bit.
- The itching could be caused by the healing process of the areas where the lice have bitten your scalp.
Remember, itchy doesn't necessarily mean you have an active infestation. Keep an eye out for live lice post-treatment, if you don't see any there is no need to treat again.
There are several reasons lice may remain unaffected after treatment. With any head lice treatment, all lice and nits (eggs) must come in full contact with the product. Lice can move quickly to avoid contact with the shampoo, lotion or gel. Reinfestation from environmental contact (i.e. infested hats, pillows, stuffed animals, etc.) can also occur. Missing any nits when combing out can trigger a reinfestation.
Lice lay nits (eggs) close to the scalp and they will hatch within 7-10 days. If you see nits several inches down the hair strand they have most likely already hatched. If you see nits but no lice crawling in your hair, then the nits may be dead and you may not need to treat again for head lice. These leftover nits can be removed with a nit comb to be safe.
It is not uncommon to still find nits but no lice in the hair after treatment. Nits are easy to miss.
The nits (eggs) are attached to the hair shaft by a thick secretion the louse uses, almost like a super glue. If her hair is fine and the comb is not doing the trick, you can also use your finger nails to pull them out.
However, if your daughter’s school does NOT have a “no nit policy” you don’t necessarily have to remove all the nits. If you used the Licefreee! treatment according to the directions, and the head and scalp was fully saturated in the product, any lice or nits in her hair should be dead.
It is not necessary to treat the hair just because you were exposed to lice unless you see live lice or nits. If you are spending time around someone who has a head lice infestation (friend, family member, co-worker), you may consider using Licefreee Everyday! Shampoo. Licefreee Everyday! is a homeopathic head lice shampoo containing naturally occurring ingredients that create an environment where head lice do not like to live.
Pull hair back tightly into a braid, ponytail, or bun and be sure to wipe the comb with each pass through the hair to remove dead lice or nits that have been swept up by the comb.
Yes, if you have enough product to thoroughly saturate the hair, you can use it for a second treatment.
It is unlikely; head lice need hair to grip on to and to attach their eggs to. However, head lice have been known to infest facial hair such as: eyebrows, beards, even eyelashes.
Licefreee Gel will kill nits as long as the product comes in contact with the nit for at least an hour. It is best practice to remove the nits just in case one didn’t get covered in the gel. You can continue to use the nit comb on her dry hair to do a head check daily and remove any nits you see. You don’t have to do an entire treatment to remove nits. The comb should work on its own. They are “glued” to the hair strands which is why they can be tough to remove.
Licefreee Spray also does kill both lice and nits and has conditioning ingredients in it. Some people find the conditioners help with removing the nits so spraying that on may help. It is non-toxic and can be used daily for a few days if you would like to do so.
You should be able to wash with Licefreee Everyday Shampoo as a regular shampoo daily. Washing with it twice is to treat an infestation as that will kill any lice in the hair, but if you are using it as a preventative measure or as a follow-up to treatment, once a day may work fine. However, using it this way may not take care of any new lice that might find their way onto the head which is why we recommend using it according to the directions and wash, rinse, repeat.
As per the directions on the label, it is best to allow the hair to air dry naturally. We do not recommend wrapping a towel around the hair while it is still damp with the product. Itching or tingling may occur, if it lasts longer than 10 minutes please rinse immediately and discontinue use. Itching during the first three minutes or so could be due to the lice scrambling on the scalp after being sprayed.
Yes, head lice only lay eggs on the human scalp, they do not lay eggs on surfaces such as furniture or bedding.
No, we do not recommend using Licefreee products on your pets. Just because they are non-toxic to humans, does not mean they are non-toxic to your pets. Please contact your veterinarian.
Licefreee Gel is safe on children 6 months and older. However, most children that young have very fine, thin hair and you can pick the lice out without using any treatments. If you carefully remove the lice and the nits, you may have success without using a product.
The so-called "super lice" have shown resistance to mainstream pesticides found in many OTC head lice treatments. Unlike these neurotoxins, Licefreee products work in a manner that lice cannot become resistant. Licefreee has been shown to be effective against super lice as shown in our efficacy studies.
There are a few options for cleaning the nit comb.
- With each swipe through the hair, wipe the comb off with a paper towel or rinse.
- Soak comb in hot water (above 130°) for 5-10 minutes.
- Run through a cycle in your dishwasher, or you can use an old toothbrush and running water to get the dead lice out.
There is no way to look at a nit with the naked eye and determine if it is dead or alive. And although some people claim it does, popping them does not prove that one way or the other either. They are just too small. The only proof is when they don’t hatch 7-10 days later. Therefore, the best practice is to remove them from the hair.
After an infested family member has been treated, check them daily for eggs for the next 10 days. If there is evidence of new eggs or newly hatched lice, repeat the treatment. Head checking should then become part of routine hygiene. A family head lice check once a week is a great idea. You will need a nit (lice egg) removal comb, a magnifying glass and lots of light. Working through a small section at a time, comb through each person’s hair from the root down. If any live lice or eggs are found, begin treatment immediately. You may also want to try using Licefreee Everyday Shampoo (included in the Licefreee Kit). It is formulated as an everyday shampoo to help prevent head lice infestation.
You can find Licefreee Home FAQs, here.
You can find the FAQs for Licefreee Spray, here.
Call your veterinarian immediately; bring the product with you if the vet advises a visit.
Once Licefreee Spray has dried you can use whatever method is easier for you to comb the nits out. Washing your hair after Licefreee Spray has completely dried will not affect the effectiveness of the treatment.
Licefreee Gel comes with a patented stainless steel nit comb to comb out your hair after using the treatment. You will want to take small sections at a time beginning with the nape of the neck working inward. If your hair is very tangled, you may want to use your regular brush or comb first to detangle your hair before using the nit comb.
Giving the product time to dry ensures the lice and nits are dead. If you comb through before the product has dried, you may encounter live lice and nits. It is best to give the product time to dry before combing, but if you must, wait at least 20 minutes after application.
Licefreee Spray kills nits as well as lice so the nits left in your hair after treatment would be dead as long as they came in contact with the product and it was allowed to dry naturally. Dead nits will not fall off the hair follicle, they will stay attached and grow out with your hair. Some schools do not have a no-nit policy and do not require removal of the nits, so in that instance removing the nits is your choice.
Treatments that are pyrethrum or permethrin-based may trigger reactions in those who are allergic to ragweed. Be sure to check the ingredients or talk to a doctor or pharmacist before choosing a treatment.
The active ingredient in Licefreee Spray is sodium chloride. You can find the label information here.
Use a product designed to treat lice on furniture and mattresses such as Licefreee Home. You can also thoroughly vacuum these items to pick up anything that has fallen off of the head.
Licefreee Home has a mild citrus scent.
If you do not comb out the nits, they will stay attached to the hair shaft. Eventually they will grow out with the hair, but they will not detach on their own.
Yes, dead lice should come out of the hair when washed after the treatment. However, nits (head lice eggs) will remain in the hair unless they are combed out. If you choose not to comb out the nits, they will eventually grow out with the hair.
Please follow instructions on the second page of the Safety Data Sheet (SDS) for directions if any of the scenarios mentioned above occur.
A no-nit policy in schools helps control an infestation and keeps children at home until all nits are removed. This policy is just to make sure that a child has been treated, all lice have been killed, all of their eggs or nits have been removed, and there is no sign of a reinfestation.
Licefreee Home is a direct lice control spray for use on bedding, furniture, and other inanimate objects infested with lice.
If your family becomes infested, choose a safe and proven head lice treatment. Follow all the directions carefully. A good comb-out conditioner is also a great way to help ease egg removal. Thoroughly combing out the hair until all lice and eggs are gone will help prevent reinfestation.
Licefreee Home should not be used on toys, blankets, stuffed animals, clothes, or any other objects that might go in a child’s mouth.
Licefreee Spray 12 OZ., Licefreee Home 16 OZ., and the Licefreee NitDuo Comb.
Licefreee Everyday! Shampoo has a nice herbal fragrance (tea tree).
Thorough treatment and teaching your family not to share personal items will help prevent head lice infestation again.
Sources of possible infestation (bedding, furniture, hats, clothing, combs and brushes) must be disinfected by laundering/dry cleaning, or sometimes discarding entirely. Items that cannot be run through the dryer (i.e stuffed animals and toys) can be placed in a sealed plastic bag for 10-14 days, and hair care items should be soaked in hot water for 15 minutes. A thorough vacuuming will get rid of lice or egg shells that are left behind.
Teach your child to avoid sharing combs, hair accessories and hats. If your child has been infested with head lice, report it to their school immediately so other children attending will be less likely to have an infestation themselves.
Once the treated surface has dried, you may resume use.
It is not necessary to retreat lice unless 1.) you find live lice, or 2.) you are following up with a second treatment as recommended 7-10 days after the first treatment. Some head lice treatments may dry the scalp and cause some itching and irritation. Further, irritation may also be the result of using many different treatments. A deep conditioner may help restore moisture to your scalp post head lice treatment(s) to alleviate itching and dryness.
Although Licefreee Gel kills the eggs, it does not cause them to become detached. To remove the eggs, use the included nit comb to remove them from the hair strand. If you find removing them is difficult with the gel in the hair, you can wash and condition the hair after the full hour of treatment is complete.
Although it is likely that closing up the trailer for that amount of time in extreme heat would probably kill anything inside, we cannot be sure. Therefore, we'd recommend waiting the suggested 14 days a nit can survive off of the human head.
While Licefreee Home is non-staining on water-safe fabrics, we recommend testing a small, inconspicuous area of all recommend treatment surfaces before application.
Licefreee Home, while not intended for use on the skin, is a gentle formula that should not irritate the skin. If irritation occurs, contact your physician. Wash hands after use.
Not necessarily. If members of your family don't share personal items, and if proper cleanup measures are taken, the infestation shouldn't spread. But, it has been known to happen.
When using Licefreee Spray! you will want to allow the product to dry naturally. This allows the product enough time to stay in contact with the lice and nits to be effective. Using a hair dryer will not help with the effectiveness of the product.