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First Aid Center
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Please call 911 immediately if you are having chest pain, difficulty breathing, severe bleeding, sudden weakness or numbness, or if you think you have a medical emergency.

Lice Treatment

Self-Care at Home

  • Head lice
    • Search for head lice when hair is wet. Use a fine-toothed comb (or a louse comb), clear tape (to stick on hair to pick up nits), a magnifying glass, and a strong light.
    • Wet combing should be done every 2-3 days over a 2-week period, with small sections of hair, working out from the scalp. Some call this "bug busting," and it can be very effective.
    • If lice are found, treat with an antilice agent and repeat in 7-10 days to kill newly hatched nits.
      • How to use antilice agents: Over-the-counter treatment is available and should be used first. If after 2 applications, lice are still present, then prescription anti-lice agents may be needed from your doctor. Apply the anti-lice agent to dry hair for the time listed on the product (usually 10 minutes). Shampoo and rinse hair and comb as directed with a fine-toothed comb. Repeat anti-lice treatment in 7-10 days to kill nits that may have hatched.
      • Nonprescription antilice agents include Nix Lotion (permethrin 1%) and Rid, A200, and Pronto shampoos (pyrethrin products).
    • Check all household members and treat only if lice or nits are seen.
    • If a child is younger than 2 years, comb to remove lice and nits but do not use antilice agents.
    • Hair conditioners may coat or cover the lice, so they should not be used before applying antilice agents.
    • Wash all bed linens and clothing that have been in contact with the infested person in the past 2 days. Use hot water and the hot cycle in the dryer.
    • Some recommend that water be at least 140°F to effectively kill the lice and nits. Most hot-water heaters are set at 120°F for child safety. This lower temperature may be effective.
    • All nonwashable items such as stuffed animals should be placed in plastic bags for 2 weeks then opened outdoors. Dry cleaning may be an alternative.
    • Disinfect combs and brushes in hot water or alcohol. Soak for more than 5 minutes in very hot water (greater than 131°F or 55°C).
    • Vacuum floors and furniture, especially couches and areas used by children. Throw away the vacuum bag immediately.
    • Herbal therapy and oil treatments have not been proven to work.
    • Do not use gasoline, kerosene, or oils. Burns have occurred.
    • Do not shave the person's head. This drastic measure is not necessary.
    • If lice are seen in a school-aged child, notify the school nurse or teacher in order to limit the spread.
  • Body lice
    • Wash the body thoroughly.
    • Wash and dry all bed linens and clothes in hot cycles. Destroy what you can because these nits can survive longer without human contact.
    • Antilice agents are usually not needed if clothing is thrown away and bed linens are thoroughly washed.
    • Check all household members or close contacts. Treat them only if lice or nits are seen.
    • Vacuum floors and furniture. Throw the vacuum bag away immediately.
    • Chemical insecticide sprays in the home are not effective and not recommended.
    • Use over-the-counter antihistamines (such as diphenhydramine , Benadryl) for itching.
  • Pubic lice
    • Treat with antilice agents and repeat in 7-10 days.
    • Remove nits with a fine-toothed comb.
    • Check all close contacts. Treat them only if lice or nits are found.
    • Wash and dry all clothes and bed linens in hot cycles.
    • Check eyelashes and eyebrows. If lice or nits are seen, apply petroleum jelly (Vaseline) twice daily for 8 days.
    • Use over-the-counter antihistamines (such as diphenhydramine, Benadryl) for itching.

WebMD Medical Reference from eMedicineHealth

Reviewed by Ann Edmundson, MD on May 24, 2006

Last updated: May 24, 2006

This information is not intended to replace the advice of a doctor.

© 2006 WebMD Inc. All rights reserved.