Although freezing temperatures can kill head lice and nits, several days may be necessary depending on temperature and humidity; freezing is rarely (if ever) needed as a means for treating head lice.
Items that cannot be laundered such as headgear, earphones, and bike helmets, can be placed in a plastic bag and put in a freezer. If the freezer is 5°F or lower, all lice and eggs should be dead within 10 hours. Also, keep items and areas off-limits to people for 48 hours to limit exposure to any live 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.
Lice and nits can't survive the high heat. It's true that lice and nits can't survive temperatures above 113°F (45°C). This makes them susceptible to any heat source, such as a hairdryer or the plates of a hair straightener.
Hair gels, hairspray, oils or other non-medicated products do not kill lice or their eggs. Cutting your child's hair or shaving their head to get rid of lice won't keep them away. Lice stick to short and just “grown in” hair too.
Vinegar does not kill lice, nor does it harm lice eggs.
Lice are also tenacious and can't be killed with a hot shower or strong shampoo. If you find evidence of lice treat all members of the household. Also, wash linens and towels on a hot setting of the washing machine.
Salt is generally pretty safe to have on your head, but not effective at killing lice or nits. It can burn and sting if it gets in the eyes, so make sure to have children tightly close their eyes, especially when rinsing the saltwater.
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.
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.
No. The two treatments 9 days apart are designed to eliminate all live lice, and any lice that may hatch from eggs that were laid after the first treatment. Many nits are more than ¼ inch from the scalp.
CAN COLD WATER KILL LICE? Cold water does not kill head lice. If dumped on the head, the lice will only cozy up closer to the scalp, hanging on tightly with its legs. If a louse somehow makes it into cold water, it may slow down some, but will die as a result of being removed from its home.
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.
Adult lice can live up to 30 days on a person's head. To live, adult lice need to feed on blood several times daily. Without blood meals, the louse will die within 1 to 2 days off the host.
The vapours of methylated spirits (and any insecticide containing methyl- ated spirits) and tar oil were effective as insecticides. Some drugs were found to stupefy the lice, which on their removal to fresh air recovered at varying intervals up to 4 hours, even though they looked quite dead when first removed.
The alcohol kills lice through asphyxiation by closing the respiratory spiracles of the louse (4). Thus, it is effective in killing lice but not the nits or lice eggs. A second treatment with benzyl alcohol after a week can kill any newly hatched lice.
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.
Either washing done with a water temperature of at least 50 degrees C or drying is necessary to kill head lice and nits.
Do not use a conditioner. It can keep the lice medicine from working. Rinse well with warm water and towel dry. Do not use the towel again until it has been laundered.
Olive Oil smothers and kills active head lice, making nit removal easier and moisturizing the hair and scalp. Part hair and apply the oil directly onto the scalp. Massage into the entire scalp making sure to saturate the hair. Apply a shower cap.
What repels head lice? Coconut, tea tree oil, lavender, eucalyptus, rosemary, lemon grass, and peppermint are scents popularly believed to repel lice. Using any coconut scented shampoo and conditioner is an easy way to increase your defense. At 1% concentration, tea tree oil killed 100% of head lice after 30 minutes.
Mix baking soda with conditioner. Apply the mixture all over the scalp and hair. Leave it for 30 minutes. Comb through each section of the hair and you can see dead lice, nits and baby lice.
The lauric acid in coconut oil may help kill lice. This treatment is not as effective as other over-the-counter (OTC) treatments for lice, but it's less toxic for your body. Coconut oil might be a viable option for people who can't tolerate the stronger treatments.