Read or provide interesting activity. Comb to get out snarls and suds. Then, with a nit comb under good lighting, comb one inch-wide sections of hair, starting at the scalp where eggs are laid. Keep hair wet, clipping finished sections aside. Clean the comb often with tissue, placing soiled tissues in a bowl of soapy water to dispose of in the toilet.
Nit combs are available at most pharmacies.
When all the hair has been combed, rinse well with tolerably hot water. Heat with kill lice. Check for stray nits or the gray to yellow eggs. Remove with tweezers or comb. Soak comb 15 minutes in 2 cups of hot soapy water with one teaspoon of ammonia or boil metal comb for 15 minutes.