No question is stupid! At one time each one of us has asked the same. I would treat again in 7-10 days, for eggs that hatch. is it lice or mites? mites you will see drop of and die(like pepper flakes,LOL) Lice are tricky and i always pick off as many clusters as i can. Nasty suckers! You can always post a pic if your not sure what they are.