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Nix
PERMETHRIN is used to treat head lice infestations. It acts by destroying both the lice and their eggs. Compare pyrethroids.

Nix Side Effects

What should I watch for?

This medicine is used as a single application treatment. If live lice are observed 7 or more days after initial application, a second treatment may be needed.

Head lice can be spread from one person to another by direct contact with clothing, hats, scarves, bedding, towels, washcloths, hairbrushes, and combs. All members of your household should be examined for head lice and should receive treatment if they are found to be infected. If you have any questions about this, check with your doctor or health care professional.

To prevent reinfection or spreading of the infection, the following steps should be taken: Machine wash all clothing, bedding, towels, and washcloths in very hot water and dry them using the hot cycle of a dryer for at least 20 minutes. Clothing or bedding that cannot be washed should be dry cleaned or sealed in an airtight plastic bag for 2 weeks. Shampoo any wigs or hairpieces. You should also wash all hairbrushes and combs in very hot soapy water (above 130 degrees F) for 5 to 10 minutes. Do not share your hairbrushes or combs with other people. Wash all toys in very hot water (above 130 degrees F) for 5 to 10 minutes or seal in an airtight plastic bag for 2 weeks. Also, clean the house or room by vacuuming furniture, rugs, and floors.

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Side Effects to watch for

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • itching
  • redness or mild swelling of the scalp
  • stinging or burning
  • tingling sensation

What may interact with this drug?

Interactions are not expected. Do not use any other skin products on the affected area without telling your doctor or health care professional.

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