Treatment of human head lice

Human head lice, or Pediculus humanus capitis, are tiny wingless insects that live on the scalp and feed on human blood. The most common treatment for head lice is the use of over-the-counter or prescription topical insecticides, such as permethrin or pyrethrin. These products are applied to the hair and scalp, left on for a specified period of time, and then rinsed off. Combing the hair with a fine-toothed comb can also be an effective way to remove lice and nits (lice eggs). Alternative treatments include using essential oils, mayonnaise or vinegar.