Head lice affect more than 100 million people worldwide annually. Permethrin (1% formulation) is efficacious but resistance is emerging. Malathion (0.5% formulation) is an alternative, but ...

(Higher concentrations of permethrin are used in medications for treating both head lice and scabies.) Spray only your clothing. We said it before, but it’s worth repeating: Permethrin spray is ...

It's tough to know how many people get head lice ... Yoon and his team noted that lice are getting more and more resistant to permethrin. In their latest study, published last year in the Journal ...

It contains the active ingredients imidacloprid, permethrin, and pyriproxyfen. Imidacloprid is classified as a neonicotinoid insecticide that controls fleas and lice. Permethrin is classified as ...