Head lice can survive in chlorinated water, and are firmly attached to the hair when a person is under water. It will also have no impact on the nits or eggs. So, swimming in a hot tub or pool is not a good solution if you're wondering how to treat head lice.
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.
DECONTAMINATION OF PERSONAL ARTICLES AND ENVIRONMENT: Since heat kills lice and their eggs, many personal articles can be disinfected by machine washing in HOT water and/or drying using the HOT cycle of the dryer. Eggs are killed in 5 minutes at 125 degrees F and adult lice die in slightly lower temperatures.
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.
Washing, soaking, or drying items at a temperature greater than 130°F can kill both head lice and nits.
Why can't you drown them by taking a long bath or going for a swim? Lice have evolved with humans, and we have always put our heads in water. They are designed to resist it. The louse shuts itself down, it is called sham death, and when you take it out of the water it recovers within five minutes.
Heat Method:
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.
Use heat. Wash any items used or worn by the person in hot water, and dry them on high heat. Lice and nits die when exposed to temperatures higher than 130 F for more than 5 minutes.
It is not usually possible to get rid of lice in one day, as an infestation needs to be treated. However, there are treatments that can help get rid of lice and symptoms caused by lice more quickly. Lice infestations must first be treated by improving the hygiene of the infected person.
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.
Lice bugs can die at any temperature above 135 degrees Fahrenheit and a flat iron reaches temperatures over 400 degrees. It is only natural that one thinks to turn to flat ironing to help eradicate their head lice infestation. Yes, it is true, if you flat iron over a louse, it will sizzle and die on contact.
Either washing done with a water temperature of at least 50 degrees C or drying is necessary to kill head lice and nits.
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.
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.
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.
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.
Head lice may be spread by sharing towels or other items that have been in contact with an infested person's hair, although such spread is uncommon. Children should be taught not to share towels, hair brushes, and similar items either at poolside or in the changing room.
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.
Heated curling or hair irons or similar devices may kill some lice and eggs, but may not safely be applied to hair nearest the skin where viable eggs are most abundant. Inanimate objects, such as clothing, toys, combs, brushes, hats and other hair accessories are of little to no significance in the spread of head lice.
Hair dye may kill lice as it contains chemicals such as ammonia and hydrogen peroxide, which lice may be sensitive to. However, it is not likely that hair dye can kill nits, which will return as lice once hatched.
Just like with mattresses, lice can only live on any bedding—whether it's sheets, pillows, or comforters—for 1-2 days. Without a human scalp as a source for food (blood) for longer than 1-2 days, lice cannot survive.
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.
As head lice can live on pillows, you'll need to clean them. Adult lice can only survive for two days without a host. However, they can still lay eggs. If the infected person has had a lice treatment and then picks up stray lice from their pillow, the lice infestation cycle can start all over again.
Lice on pillowcases can be killed by heating the pillowcase by immersion in water at > 60 degrees C, by a hot wash, or by 15 min in a hot clothes dryer.
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.