Either washing done with a water temperature of at least 50 degrees C or drying is necessary to kill
Simply washing the items in hot water and drying them at a high temperature should get rid of the critters. The head louse (Pediculus humanus capitis) is easily killed by temperatures above 122 degrees Fahrenheit, and the typical residential hot water temperature is about 130 degrees.
Getting rid of body lice
Lice and eggs in clothing will die if the clothes are not used. All stages that are not in contact with the body, except the eggs, will die within 1-2 days at ambient temperature.
Lice die within 3 days at room temperature if they fall off a person into most areas of the environment. However, they can live in the seams of clothing for up to 1 month.
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 dry clothing, bed linens, and other items that the infested person wore or used during the 2 days before treatment using the hot water (130°F) laundry cycle and the high heat drying cycle. Clothing and items that are not washable can be dry–cleanedORsealed in a plastic bag and stored for 2 weeks.
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.
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.
It's rare for head lice infestations to spread through the common use of furniture or carpets, but it's a good idea to do some post-infestation housework. Toss pillows and mattress pads in the washing machine, and use the hand tools on your vacuum cleaner to thoroughly clean mattresses, furniture, and car seats.
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.
Remove and wash all bedding in hot water, then dry on high for 20-30 minutes. If your pillows or sheets are not machine washable, seal them in a large plastic bag and leave them for 7-10 days to make sure all lice and nits have died.
Although uncommon, head lice can be spread by sharing clothing or belongings. This happens when lice crawl, or nits attached to shed hair hatch, and get on the shared clothing or belongings.
Head lice survive less than one or two days if they fall off the scalp and cannot feed. Head lice eggs (nits) cannot hatch and usually die within a week if they do not remain under ideal conditions of heat and humidity similar to those found close to the human scalp.
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.
Itching on the areas where head lice are present is the most common symptom. However, it may take up to 4 to 6 weeks after lice get on the scalp before the scalp becomes sensitive to the lice saliva and begins to itch. Most of the itching happens behind the ears or at the back of the neck.
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.
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.
Vacuuming: While a vacuum is a good tool for cleaning up the ground after manual lice removal with a comb, it is not a wise idea to attempt to vacuum lice out of someone's hair. This is an uncomfortable and ineffective solution as lice have special claws to hold onto hair.
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.
Hairspray makes it harder for the louse to grab hold. The smell of hairspray and the use of solvents (sad but true) in them can also deter creepy crawlies from finding their way in. Not to mention that if you're tying longer hair back, you've got a double whammy.
Ivermectin (Sklice).
This lotion kills most head lice, even just-hatched lice, with just one use. You don't need to comb out lice eggs (nits). Children ages 6 months and older can use this product.
Suffocate the Lice
Soak your child's head in olive oil or coconut oil. Cover with a shower cap for at least 2 hours (or preferably overnight). When ready, remove the shower cap, and separate the hair into small sections, then use a metal nit comb to carefully remove the lice and eggs. Rinse the hair well with shampoo.
Head lice can hide and survive in clothing, such as the hood of a coat, a hat, a scarf, in bedding, mattresses, carpets, pillows, stuffed animals, and plush toys like teddy bears just waiting to find a new home in a fluffy head of hair.
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.
Clean all hair items by soaking in a lice treatment product for 10 minutes or cleaning with hot, soapy, or boiling water for 5 minutes. Never share towels, bedding, clothing, hats, and headgear. thoroughly. Insecticide sprays are not recommended because this will expose household members to unnecessary pesticides.