Healthy Living. Safety and Prevention. Family Life. Health Issues. Tips and Tools. Our Mission. Find a Pediatrician. Text Size. Page Content. What are head lice? This cycle can repeat itself every 3 weeks if head lice are left untreated. How common are head lice? How do head lice spread? What are symptoms of head lice? How do you check for head lice? Seat your child in a brightly lit room. Part the hair. Look for crawling lice and for nits on your child's scalp a section at a time.
Live lice are hard to find. They avoid light and move quickly. Use a fine-tooth comb to help you search the scalp section by section.
What is the comb-out method? Here is how you use the comb-out method: Step 1: Wet your child's hair. How do you treat head lice?
Here are some safety guidelines: Follow the directions on the package exactly as written. Never let children apply the medicine. Medicine should be applied by an adult. Never place a plastic bag on a child's head. Do not leave a child alone with medicine in his or her hair. Store medicine in a locked cabinet, out of sight and reach of children. What head lice medicines are available?
Apply to dry hair and rinse off after 10 minutes. Kills lice; does not kill lice eggs. Retreatment is recommended between days 9 and 10 if live lice are seen. Apply to dry hair and rinse off after 8—12 hours. Kills lice and lice eggs. A second treatment is recommended in 7—9 days if live lice are seen. Flammable; may cause chemical burns.
Repeat in 9—10 days. Contains no neurotoxic pesticide. A second treatment is recommended in 7 days if live lice are seen. However, may prevent newly hatched lice from living. Only 1 application is needed. All household members and close contacts should also be checked and treated if necessary.
The information contained on this Web site should not be used as a substitute for the medical care and advice of your pediatrician. There may be variations in treatment that your pediatrician may recommend based on individual facts and circumstances.
Follow Us. Back to Top. Chronic Conditions. Common Surgical Procedures. However, rapid reproduction can make them tough to eliminate. Learn about over-the-counter and prescription medications that can stop a lice outbreak. Learn more. Health Conditions Discover Plan Connect.
Lice Symptoms. Medically reviewed by Debra Sullivan, Ph. Learn how to identify symptoms that indicate you or your child may have lice. Types of lice. Other symptoms. How to check for lice. Lice prevention at home. Lice prevention at school. Treating head lice. Seeing your doctor. Head Lice Infestation. How to Kill Head Lice. Read this next. A Close Look at Lice Bites. Medically reviewed by Judith Marcin, M.
Medically reviewed by Debra Rose Wilson, Ph. Medically reviewed by Jeanne Morrison, Ph. These tiny parasitic insects are about two to three millimeters long—and they feast on human blood, according to the Centers for Disease Control and Prevention CDC.
In general, people get lice from direct head-to-head contact. Garcia says. Lice are typically found on the scalp or attached firmly to hair shafts, but they can appear on the eyebrows and eyelashes as well. Some lice symptoms are more common and noticeable than others. But in general, these are the ones you want to keep an eye out for:. This is a classic sign of lice, Dr.
Garcia explains. Dandruff causes white or even yellowish flaking on the scalp directly, while lice often look like little grains of rice that are firmly attached to the hair follicle. Not everyone feels lice moving around on their scalp, but some people do. Again, the itchiness that lice cause is from the saliva they inject into the scalp when they bite.
That can cause an allergic reaction and lead to a red rash or bumps on the skin , Dr. Woods says. Given that the bumps are hidden under hair, they can be tough to spot, though.
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