I am so bummed out right now. I did my monthly bug check and found lice, and nits on one of my girls. SO here is what I did, cleaned out the coop, sprayed everything down with poultry protector, waited for it to dry then dusted the coop/grounds with DE and garden/poultry dust containing permethrin. Next I sprayed my girls bottom, and wing pits with poultry protector. After they where dry, I dusted their bottoms with DE and Poultry dust. Did I miss anything? They are all doing well, and look good. I try to keep them so clean, and use DE all the time in their nest boxes, coop, and dust bath areas. What went wrong? She just started laying Sunday, and now this. I am SO upset. I will dust them again in 7-10 days. How long until the eggs are gone around the vent feathers? I think it bothers me more than them at this point. They are for sure lice, and not mites. Can they die from them? Ugggg.....I feel like a bad chicken keeper. Sorry so long winded, just had to tell people who understand.