marydean sux on the headlice working in childcare its something i can say i am pretty used to unfortunately... what i used to do was put the stuff in and using the fine toothed comb i would sit outside and comb them out when u do this u will know if u have them or not as to whether any get stuck in the comb or not (lice can't live for 24hrs away from the scalp so outside i felt was easier then inside and i didn't have to have my head tipped over the bath or something) then i used a headlice shampoo (go a natural one like tea tree or something so u dnt have those nasty chemicals) i did that once a day for say 3 days and they were deffinately gone.. they were all dead after the first time but if u miss an egg in there it can hatch and it starts all over again... as well as that u can get tea tree shampoos that headlice dnt like and u can use them as a preventative... hope this helps