Permethrin is a drug and an insecticide. As a medicine, it is specified to treat scabies and lice. It is used on the skin as a cream or lotion. As an insecticide, it can be sprayed onto clothes or mosquito nets to destroy the insects that connect them. Side effects have inflammation and irritation at the site of usage. Apply during pregnancy occurs to be reliable. It is authorized for applying on and almost people over the age of two months. It is in the pyrethroid family of medicines. It functions by disrupting the process of the neurons of lice and scabies mites.