My daughter picked up lice on three occasions: twice from a classmate and once from day camp. The first time I went straight to headlice.org
, bought a Licemeister comb, and avoided lice shampoo at all costs
. Those shampoos contain pesticide and many children will react badly to them. The comb (and daily combing for two weeks) was all I needed to do to get rid of the critters. I also vacuumed chairs and carseats, and only washed her pillowcase as a regular load.