Medicated shampoos, such as Kwell or Scabene, and rinses like NIX are effective head lice treatments available without a prescription. Kwell should not be used on infants or toddlers. NIX Creme Rinse is 99 percent effective in killing lice and eggs with just one application. It also protects from re-infestation for 2 weeks. Fine combs are provided with most lice treatment products to remove all nits.
Many schools require students to be nit-free before they can return to class.
Another very effective head lice treatment is a simple home care, toxin-free remedy that uses mayonnaise. Leave the shower cap on for three to four hours. The mayonnaise will smother the lice and eggs. Wash the hair with warm water and shampoo to remove the mayonnaise. The dead eggs will still be attached to the hair.