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Health Information For Parents
Head lice are tiny wingless insects. They live among human hairs and feed on blood from the scalp.
Head lice are a common problem, especially for kids. They spread easily from person to person, and sometimes are tough to get rid of. Their bites can make a child’s scalp itchy and irritated, and scratching can lead to infection.
Head lice are annoying, but they’re not dangerous and they don’t spread disease. They’re not a sign of poor hygiene — head lice need blood and they don’t care whether it’s from someone who’s clean or dirty.
It’s best to treat head lice right away to prevent them from spreading.
Even though they’re tiny, you can see head lice. Here’s what to look for:
Unless a child has many head lice, it’s more common to see nits in the hair than live lice crawling on the scalp. Lice eggs hatch 1–2 weeks after they’re laid. After hatching, the remaining shell looks white or clear and stays attached to the hair shaft. This is when it’s easiest to spot them, as the hair is growing longer and the egg shell is moving away from the scalp.
Look for lice and nits on the scalp, behind the ears, and around the nape of the neck. It’s rare for lice to be in eyelashes or eyebrows.
It can be tough to find a nymph or adult louse. Usually, there aren’t many of them and they move fast. Look for nits attached to the hair near the scalp. They can look like dandruff or dirt. To tell them apart, pull on the little speck with your fingers — dandruff and dirt can be removed, but nits stay stuck. A magnifying glass and a bright light can help with your inspection.
The best way to check is by using a fine-tooth comb on wet hair. After applying lots of conditioner, comb the hair out in very small sections, and look for lice or nits on the comb. You can wipe the comb onto a tissue or paper towel where it will be easier to see them.
If your child is itchy and scratching their head but you’re not sure if it’s lice, ask your child’s doctor or the nurse at school or childcare center to take a look.
The two main ways to treat lice are:
Medicine: Medicated shampoos, cream rinses, and lotions are available that kill lice. These may be over-the-counter (OTC) or prescription medicines. If you buy OTC, be sure it’s safe for your child’s age. While some over-the-counter shampoos are safe for kids as young as 2 months, others are safe only for kids 2 years and older.
In some areas, lice have developed resistance to some medicines. This means they no longer work to kill the lice. Ask your doctor or a pharmacist to recommend a medicine known to work in your area. The doctor also can prescribe a medicated shampoo or lotion. For very resistant lice, the doctor might recommend taking medicine by mouth.
Whether the medicine is OTC or prescription, always follow the directions closely. Applying too much can be harmful. Applying too little won’t work.
Removing by hand: Removing lice and nits by hand can finish the job if the medicine did not completely rid your child of lice (no medicine is 100% effective). It is also an option for anyone who doesn’t want to use an insecticide. And it is the only option for children 2 months old or younger, who should not use medicated lice treatment.
To do this, use a fine-tooth comb on 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.
There’s no need to buy electronic combs that claim to kill lice or make nits easier to remove. No studies have been done to back up these claims. You also don’t need to buy special vinegar solutions to apply to the scalp before picking nits. Water and conditioner works fine.
Though petroleum jelly, mayonnaise, or olive oil are sometimes used to try to suffocate head lice, these treatments may not work. If medicine doesn’t work and you want to try these methods, talk to your doctor first.
A few important things to NOT do: Don’t use a hairdryer after applying scalp treatments. Some treatments for lice use flammable ingredients and can catch on fire. Don’t use pesticide sprays or hire a pest control company to try to get rid of the lice; these can be harmful. Don’t use essential oils (such as ylang ylang oil or tea tree oil) to treat lice on the scalp. They can cause allergic skin reactions and aren’t approved by the U.S. Food and Drug Administration (FDA). Don’t ever use highly flammable chemicals such as gasoline or kerosene on anyone.
Head lice spread quickly from person to person, especially in group settings like schools, childcare centers, slumber parties, sports activities, and camps.
They can’t fly or jump, but they have claws that let them crawl and cling to hair. They spread through head-to-head contact, and sharing clothing, bed linens, combs, brushes, and hats.
Pets can’t catch head lice and pass them on to people or the other way around.
In the past, kids with head lice were kept home from school. But now doctors don’t recommend these “no-nit” policies. In most cases, a child who has lice should stay at school until the end of the day, go home and get treatment, and return to school the next day. While they are at school, kids should avoid head-to-head contact with other kids. It can help to put long hair up in a bun, braid, or ponytail.
To get rid of head lice and their eggs, and to help prevent them from coming back:
As many parents know, fighting head lice can be an ongoing battle. There’s no doubt that they can be hard bugs to get rid of.
If you’ve tried everything and your child still has lice, it could be because:
If your child has lice 2 weeks after you started treatment or if your child’s scalp looks infected, call your doctor.
There are professional lice treatment centers that remove lice and nits for a fee. These services are effective but often costly.
Remind your child that while having lice can be embarrassing, anyone can get them. Having head lice is not a sign of dirtiness or poor hygiene. The pesky little bugs can be a problem no matter how often kids do — or don’t — wash their hair or bathe.
Dealing with head lice can be frustrating, but be patient. Follow the treatments and prevention tips from your doctor, and soon your family will be lice-free.
Lice commonly spread from kid to kid. They’re not dangerous – but they are creepy and annoying. Here’s what to do about them.
Our skin protects the network of tissues, muscles, bones, nerves, blood vessels, and everything else inside our bodies. Hair and nails are actually modified types of skin.
Pubic lice are six-legged creatures that infest the hair in the pubic area. Pubic lice infestation is considered a sexually transmitted disease (STD), but it can be contracted in other ways.
Pubic lice, or “crabs,” are tiny insects that usually spread through sex.
Lice aren’t dangerous, but they do spread from person to person easily. They can also be hard to get rid of. Find out how to prevent lice — and what to do if someone you know has them.
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.
Lice are tiny insects that live in a person’s hair. Find out more in this article for kids.
Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
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