30. Do otc lice treatments kill nits?
Over-the-counter (OTC) lice treatments primarily target live lice. Many contain chemical insecticides like permethrin or pyrethrins, which are more effective against adult lice than nits (lice eggs). The efficacy against nits is often limited because the eggs have a protective shell that can shield them from the treatment. Some OTC treatments may help to loosen the glue that attaches nits to the hair shaft, making them easier to remove with a nit comb. It is generally recommended to follow up the initial treatment with meticulous combing to remove nits and a second application of the treatment about 7-10 days later to kill any newly hatched lice before they can lay new eggs. Consult the product instructions and a healthcare professional for the most effective and safe lice and nit eradication strategy.