My nephew asked me if he could use some of my property for chickens and I agreed. I even purchased a 8x10 Amish Made Coop for him to use on my property. The chickens have been here since April 2017. He abandoned them in August 2017, and I have been caring for them, reading books and researching online. I have attended poultry seminars through our local extension office. The chickens have red mites and I have been completely cleaning the coop weekly. I spray the coop from top to bottom, then place fresh bedding inside and in the nesting boxes, then I spray the run. I spray the coop and the run every 2 days and then completely clean it out once a week. On the days I do not spray, I use DE in the coop and in the run. I also have 2 boxes of DE for them to bathe in. I have also been dusting the chickens individually. I have been doing this for 7 weeks and they are not any better, the rooster actually looks worse than the hens. I took one hen to the vet and he said it was early molting. Then our extension office and a farmer told me it’s red mites. They look terrible and I don’t know what else to do. I want them to feel better and look better. Any help would be greatly appreciated!