It may take as long as 2 to 3 weeks or longer for a person to notice the intense itching associated with this infestation. Pediculosis can be spread for as long as lice or eggs remain alive on the infested person or clothing. Medicated shampoos or cream rinses containing lindane or pyrethrins are used to kill lice. Lindane is not recommended for infants, young children and pregnant or lactating women. Retreatment after 7 to 10 days is recommended to assure that no eggs have survived.
Nit combs are available to help remove nits from hair.
Dose and duration of shampoo treatment should be followed according to label instructions. Physical contact with infested individuals and their belongings, especially clothing, headgear and bedding should be avoided. For people residing outside of New York City, please contact your state or local health department.