Wash items on a hot water cycle and dry on high heat for at least twenty minutes. The heated wash and dry will remove and kill any lice left. Carpets, mattresses, and flooring can simply be vacuumed and cleaned with everyday cleaning products.
Spinosad (Natroba). Spinosad is approved for adults and children age 6 months and older. It can be applied to dry hair and rinsed with warm water after 10 minutes. It kills lice and nits and usually doesn't need repeated treatment.
Body lice are primarily treated by thoroughly washing yourself and any contaminated items with soap and hot water and drying clothing and bedding in a machine dryer using the hot cycle. Dry cleaning and ironing clothing that cannot be washed also is effective.
Machine Wash and Bedding and Clothing.
Use hot water (130°F) cycle paired with a high heat drying cycle. This process will dehydrate and kill any potential surviving lice and lice eggs.
Benzyl alcohol lotion, 5% has been approved by the FDA for the treatment of head lice and is considered safe and effective when used as directed. It kills lice but it is not ovicidal. A second treatment is needed 7 days after the first treatment to kill any newly hatched lice before they can produce new eggs.
It's possible that the nits are leftover from a previous infestation and are no longer viable, which means they are dead and won't hatch. It's difficult to tell the difference, so you should still treat any nits you find, even if there are no lice.
There are recent studies that show that treatment of lice with heat can be quite effective in killing head lice. Products such as Lousebuster are very effective but even a home hairdryer can successfully treat lice.
There is no need for special chemicals or detergents to kill the lice. You don't need any unusual equipment or special training. The primary weapon against these bugs is… heat.
Vinegar does not kill lice, nor does it harm lice eggs.
Nix out lice. From the #1 pediatrician-recommended lice removal brand*, Nix Lice & Bed Bug Killing Spray for Home will kill lice and bed bugs and is effective for up to 4 weeks. It's easy to use – simply spray on affected areas such as bedding and furniture.
Dehydration: Applying hot air with a special machine operated by a professional can cause dehydration, possibly killing the eggs and lice. Household cleaning: Lice usually can't live more than a day without feeding off a human scalp, and the eggs can't survive if they aren't incubated at the temperature in the scalp.
The risk of getting infested by a louse that has fallen onto a carpet or furniture is very small. Head lice survive less than 1–2 days if they fall off a person and cannot feed; nits cannot hatch and usually die within a week if they are not kept at the same temperature as that found close to the scalp.
Can vinegar kill lice eggs? Vinegar is one of the classic home remedies for lice. However, if you are trying to find out how to get rid of nits using vinegar, you should know that using vinegar to kill nits or lice eggs is totally ineffective. Vinegar has no negative effect on the lice eggs.
Infestation timeline
So if you look on the scalp and see no visible adult lice and several small nits, it's likely that you've caught lice in the earlier stages and had them for less than 2 weeks. Nits and nymphs: 1.5 to 2 weeks. If you see nits and small, moving lice, you've likely had lice for 1.5 to 2 weeks.
Sometimes it will be easier to remove the nits if you wet the hair with white vinegar while you are combing the nits out. Vinegar helps loosen the "glue" that holds the nits to the hair. Separate and comb small sections of hair at a time.
Listerine contains alcohol that kills lice. Applying a dilute vinegar solution afterward can loosen the glue that holds nits to the hair shaft and make them easier to remove. Lice also could be smothered with coconut oil.
Adult lice can't live longer than 24 hours or so on nonhuman surfaces like carpets, hardwood floors, clothing, furniture, sports helmets, headphones, or hair accessories. However, if you have identified lice in your home, isolate and wash those items and areas within at least 72 hours.
To remove nits after treating for lice, work a small amount of fabric softener into the patient's hair and scalp, cover with a plastic shower cap for 20 minutes, and then comb out.
Blow dry your child's hair. It has to be thoroughly dry down to the scalp to suffocate the lice. Expect this to take 3 times longer than normal drying.
Tea tree oil appears to be able to kill some live lice (at least when used in conjunction with lavender oil), however we know that over-the-counter lice treatments are far more effective at killing live lice and getting rid of the eggs once an infestation has occurred.
Medieval folklore suggests that lard was used to try and suffocate lice and nits off of a scalp. Others propose simply keeping the hair combed through and clean was of so little a priority that no one even bothered with lice.
Repeat treatment every day or every other day for 2 weeks. Some lice eggs (nits) survive head lice treatments. The only way to be sure that lice won't come back is to pick out all nits. Nits left on the hair can hatch and cause a new case of head lice.
Nits are often confused with other things found in the hair such as dandruff, hair spray droplets, and dirt particles. If no live nymphs or adult lice are seen, and the only nits found are more than ¼-inch from the scalp, the infestation is probably old and no longer active and does not need to be treated.
Don't Obsess Over Nits
Generally, if no live crawling insects are seen three weeks after the treatment, it's safe to assume that they are gone. Nits would have hatched by that time if they were alive. Nits and their shells may remain in the hair for some time but won't be viable.