DD1 came from school yesterday with head lice. I check her daily so know she only got them yesterday but I stripped all her and DD2's bedlinen last night and boil washed as a precaution plus all towels etc. So my question, I treated with an overnight lotion and washed then nitty gritty combed the hair this morning. Should I also strip and wash all bedlinen again? i got a few dead ones from DD1 when combing this morning and nothing at all from DD2.