Small parasitic insects that can cause a itching red rash to the skin of the waist, shoulders, armpits, neck and pubic area. Commonly spread from person-to-person via close contact. The eggs (nits) of head lice can be mistaken for dandruff, but they are adherent to the hair shafts.

Symptoms include itching, eggs visible on hair shafts and lice on hair, scalp or clothing. Treatment requires the use of a special prescription insecticide (Kwell) shampoo and/or lotion.

(27 Sep 1997)