Our daughter Hannah (who has long hair) suffered from nits/lice a couple of times when there were outbreaks in junior school.

We resorted to a pharmaceutical product for one particularly bad infestation but as many have indicated above working very carefully through a few hairs at a time with a proper nit comb usually works although it is time consuming. We used to rinse the nit comb in slightly diluted vinegar between each combing session.

It's true lice prefer clean hair and its also important that the school is informed so that the problem can be dealt with classwise otherwise you quickly get reinfestation.

Off for a scratch now!

mooman