Like mayonnaise, coconut oil has a rich and thick consistency that's sometimes used as means of suffocating lice and their nits. However, aside from getting smooth hair out of this treatment, there's little to no evidence that coconut oil will get rid of lice for good.
If lice are not completely covered by oil, they may not die but the oil will slow them down allowing them to be caught in the nit comb.
On its own, tea tree oil was the most effective treatment tested. Tea tree oil and peppermint appeared to be most useful for repelling lice. Tea tree oil and lavender were also found to prevent some feeding by lice on treated skin.
Technically the answer to that is yes. Practically speaking if the lice are on your head, you would need to apply an oil, like olive oil, to the hair and leave it on for at least 8 hours. You obviously cannot submerge the head in water for 8 plus hours in order to drown them or you will drown, as well!
Olive oil is one of the most effective natural remedies for head lice because it acts as a suffocating agent.
Wash any lice-infested item in hot water that is at least 130°F (54°C), put it in a hot dryer for 15 minutes or more, or placing the item in an air-tight plastic bag and leaving it for two weeks to kill the lice and any nits. You can also vacuum floors and furniture where lice may have fallen.
Coconut oil itself doesn't prevent lice, but oil on a hair shaft does make it harder for those little eggs (called nits) to stick. However, it can also make hair look and feel greasy. Coconut oil is also considered a tree nut by the FDA and could be a potential allergen to kids.
The coconut oil should be at or slightly above room temperature so that it's in a liquid form and easy to spread throughout your hair. Massage the coconut oil generously throughout your hair, and apply the plastic shower cap right away. Leave the cap on for eight hours (or more) to suffocate the lice.
Permethrin lotion, 1%;
Permethrin lotion 1% is approved by the FDA for the treatment of head lice. Permethrin is safe and effective when used as directed. Permethrin kills live lice but not unhatched eggs. Permethrin may continue to kill newly hatched lice for several days after treatment.
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.
Washing, soaking, or drying items at a temperature greater than 130°F can kill both head lice and nits. Dry cleaning also kills head lice and nits. Only items that have been in contact with the head of the infested person in the 48 hours before treatment should be considered for cleaning.
Vinegar contains properties that kill and get rid of nits and lice. This mixture should be applied directly to the whole scalp. Mix 1 cup of vinegar with 1 cup of warm water. Next, distribute this mixture onto the scalp and cover your hair with a hair cap.
Lice and nits can live on pillows and sheets. Lice glue their eggs to the hair strands of their host. However, if a piece of hair with an egg falls out while the lice host is sleeping, an egg could end up on pillows or sheets.
The conditioner does not kill lice but stuns them for about 20 minutes enabling easier removal. The long toothed metal comb will remove nits and the stunned head lice. Wipe the comb on a white tissue and check for any lice or nits. Keep combing until no more appear on the tissue.
So, the realistic answer is “No, you can't drown lice.” The best treatment for lice is to get them picked out by a professional – Lice Geeks, for example – using the right comb. Even over-the-counter shampoos and products aren't as effective as a well-trained professional wielding the proper comb.
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.
Avoid head-to-head (hair-to-hair) contact during play and other activities at home, school, and elsewhere (sports activities, playground, slumber parties, camp). Do not share clothing such as hats, scarves, coats, sports uniforms, hair ribbons, or barrettes. Do not share combs, brushes, or towels.
While vinegar does not help in suffocating adult lice, it does prevent the nits (eggs) from latching on to the hair strands. Combined with careful combing, using the fine metal comb, it's an excellent and simple method for removing the nits.
Some studies have shown lice are repelled by the smell of coconut. If you're attached to your shampoo brand, you can simply add a few drops of coconut oil to it for a similar effect. If you keep up this scent treatment you and your family should be able to prevent an outbreak from occurring in your household!
Because the active ingredients have remained the same all these years, new generations of head lice have become immune to them. Once lice become immune, the product no longer works. Scientists call this resistance.
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.
Typically, 10–15 head lice are found. The number of lice often depends on personal hygiene, for example, how often the person bathes, shampoos, or changes and washes his/her clothing.
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. The dried Cetaphil will smother the lice.