Hi, quick question, yesterday morning I pulled a live louse out of my hair (at least I think it was one). I work with kids, so could easily have got it from them or my own dcs. Thing is, I have combed us all with nitty gritty comb and can't find any evidence of nits or lice on any of us. Is it possible that I just got one lonely headlouse from work on Friday, got him (or her) out on Saturday morning and that's the end of it? None of us have ever had them before. Don't have anyone who can check my hair properly, just combing myself. Should I just buy some hedrin or something and treat us all?