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A 40-year-old member asked:

How many times do i need to apply kwell (lindane) (permethrim) shampoo for lice?

1 doctor answer3 doctors weighed in
Dr. Zuheir Said
Pediatrics 47 years experience
Once: Depends on Permethrin gel concentration 2%, 5%, usually once, and may repeat once again after one week interval. Avoid oral and eye contact. Follow instructions from your doctor and the manufactury. Recommendations for children. Treat other family members who are in contact with the sick patient.

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Last updated Sep 2, 2015

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