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Health Information For Kids
Scratch scratch. Scratch. Your head is feeling really itchy. Could it be lice?
If so, you’re not alone. Every year, millions of people worldwide get head lice. Most of those millions are kids. Any kid who goes to school has probably already heard about lice. They can spread easily at schools, so if one kid gets them, the rest of the class might get them, too. What can you do? Let’s find out.
Lice are very, very small insects. In fact, they are so tiny that you can barely see them! Each louse (the name for one of the lice) is only about the size of a sesame seed.
Head lice need to be next to skin to survive — and the warmth of your skin is a perfect place for them to live. Lice eat tiny amounts of blood (much less than a mosquito does) for their nourishment and use their sticky little feet to hold on to hair. Gross!
When lice start living in hair, they also start to lay eggs, or nits. Lice can survive up to 30 days on a person’s head and can lay eight eggs a day. Lice attach their nits to pieces of hair, close to the scalp. If you see a small, oval blob on a strand of hair, that’s probably a nit. If these little eggs are yellow, tan, or brown, the lice haven’t hatched yet. If the eggs are white or clear, the lice have hatched.
Although they don’t hurt, lice sometimes can irritate the skin and make it itchy (especially at night). Too much scratching can lead to scalp infections.
Having lice can be embarrassing, but anyone can get them. That includes the cleanest kid in the class! Having head lice is not a sign of dirtiness or poor hygiene. The pesky little bugs can be a problem no matter how often a kid does — or doesn’t — wash their hair or take a bath.
Lice can’t jump or fly. They spread when people’s heads touch or when they share hats and other clothing, combs, brushes, headbands, barrettes, and bedding (like sheets, blankets, pillowcases, and sleeping bags). If lice are stuck on any of these things and that thing touches another person’s head, that person may also get lice. Lice spread in classrooms and schools because kids play together closely and often share more stuff than adults do.
If your head feels very itchy, tell an adult as soon as possible. This is especially true if you know that other kids in your class or school have had lice. Don’t wait around — the more time the lice have to lay nits, the itchier you will be!
Often a parent or school nurse can recognize head lice just by looking for nits in the hair. Some kids’ parents will take them to the doctor so the doctor can check to see if lice are there.
If a kid has lice, an adult will need to buy a special medicated shampoo, cream, or lotion that kills lice. An adult will need to apply the medicine and follow the directions. Part of the treatment is combing your hair with a fine-tooth comb to remove the nits. The shampoo, cream, or lotion usually kills the lice right away. The itching should go away within a few days, but treatment may need to be repeated in 7 to 10 days to kill any new lice that may have hatched since the first treatment.
Do not use a hair dryer on your hair after washing with the medicated shampoo, lotion, or cream because they can contain flammable ingredients. You don’t want your hair catching on fire.
Your parent also can try removing the nits and lice by hand. To do this, your mom or dad will use a fine-tooth comb on your wet, conditioned hair every 3–4 days for 3 weeks after the last live louse was seen. Wetting the hair temporarily stops the lice from moving, and the conditioner makes it easier to get a comb through the hair.
Although lice can live for only 1 to 2 days off a person’s head, it’s a good idea for an adult to wash all your bedding, hats, clothing, and stuffed animals in hot water. Or they can seal these things in airtight bags for 2 weeks. That also will kill the lice and their eggs.
Vacuuming the carpets, upholstery, and car seats will take care of any lice that fell off before treatment. Combs, brushes, and hair accessories need to be soaked in hot water, washed with medicated shampoo, or thrown away.
Sometimes it’s hard to get rid of the lice. If that happens to you, have your parent talk to the doctor. There are stronger medicines and other treatments that they may decide to use.
Sure, lice aren’t so nice, but there are things you can do to keep them away. To help prevent lice:
Sharing is usually a great idea — except when you’re sharing lice!
Chiggers are a tiny red type of mite. Learn more about itchy chiggers in this article.
Lice need to suck blood to survive, and they sometimes live on people’s heads and lay eggs in their hair. Get the lowdown on lice in this article.