What kills lice instantly in hair?

What kills lice instantly in hair?

Permethrin lotion, 1%; Permethrin lotion 1% is approved by the FDA for the treatment of head lice. Permethrin is safe and effective when used as directed. Permethrin kills live lice but not unhatched eggs. Permethrin may continue to kill newly hatched lice for several days after treatment.

What is the strongest thing to kill lice?

Malathion (Ovide). This very strong lotion paralyzes and kills lice and some lice eggs.21 ago 2020