Hi Dawg--Yes I realized in my panic of nursing a sick bird, crappy weather, improving my hawk deterrent measures, worrying that I had mites and figuring this all out I should have cleaned the coop at the same time/before they went back in. At least now I feel I have a few days breathing room to do it right. So I will retreat at the 10 day mark and wait to clean the coop until then and put them back in a clean coop. I am nervous about the Sevin dust and really prefer not to mess with it more for my sake than the birds'. Is Poultry Protector more of a preventative or will it break the life cycle of the mites? If it is a preventative, what exactly is it preventing in terms of the mites, I wonder? Thank you again!Ideally, when you treated your birds with the ivermectin, you shouldve dusted your coop the same day prior to the birds going inside the coop for the night. This wouldve greatly decreased the odds of your birds getting reinfested albeit the ivermectin would kill the mites. It's a matter of stopping the mites lifecycle which includes eliminating them inside the coop and nests. Retreat your birds with the ivermectin in 10 days to kill mites hatched from eggs. Dust the coop as well. Sevin dust will get them.