2 doctors weighed in:

When should a second treatment of NIX (permethrin) be done to ensure all lice is dead? 7?8?or 9 days after the first treatment. Please help

2 doctors weighed in
Dr. Al Hegab
Internal Medicine - Allergy & Immunology
1 doctor agrees

In brief: 7 days

In fact doesn't make much difference, 7 days after the first application would be fine

In brief: 7 days

In fact doesn't make much difference, 7 days after the first application would be fine
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