Permethrin lotion 1% (also known as Nix) is another over-the-counter product that only kills lice, but not eggs, and will require repeat treatment in nine to 10 days. Pesticide-free, over-the. Permethrin Cream 5% is a topical scabicidal agent for the treatment of infestation with Sarcoptes scabiei (scabies). It is available in a white to off-white, vanishing cream base. Nix ® Crème Rinse is available in a 2-ounce box, 4-ounce box and The Complete Lice Treatment Kit. The 2-ounce box contains one bottle of Nix ® Crème Rinse plus one nit comb. The 4-ounce box contains two bottles of Nix ® Crème Rinse plus two nit combs. Treat Lice in 3 Easy Steps Nix ® is the 1 pediatrician recommended brand for head lice treatment. Permethrin lotion which is used to treat lice, comes in a container that holds only one treatment. Use as much of the medicine as you need and discard any remaining lotion properly. Use as much of the medicine as you need and discard any remaining lotion properly. How to use Lice Treatment Liquid. Apply this medication as soon as possible after it is prescribed. When treating head lice, apply this medication to the hair and scalp only. Permethrin may continue to kill newly hatched lice for several days after treatment. A second treatment often is necessary on day 9 to kill any newly hatched lice before they can produce new eggs. Permethrin is approved for use on children 2 months of age and older. Easy-to-read patient leaflet for Permethrin Cream Rinse and Lotion. Includes indications, proper use, special instructions, precautions, and possible side effects. Includes indications, proper use, special instructions, precautions, and possible side effects. Permethrin is used to treat scabies ('mites that attach themselves to the skin) in adults and children 2 months of age and older. Over-the-counter permethrin is used to treat lice (small insects that attach themselves to the skin on the head) in adults and children 2 months of age and older. TREATMENT OVERVIEW. Many experts agree that before treatment, there must be positive identification of live lice and unhatched eggs, not just nits.