A few weeks ago I noticed some of my hens were losing feathers, first along their bottoms then on their necks and head. I immediately began researching the possible causes. Molting? Lice? Mites? By now I have treated my poor hens with Ivermectin. When that didn’t seem to work and more of my hens started to look like they were undergoing cancer treatment I treated them with Permethrin 10. Each time I treated the hens I completely emptied their coop, I even vacuumed the place, and sprayed it down. I have checked their coop late at night but haven’t seen any evidence of bugs of any kind. I have tried feed with higher protein and also supplemented their feed with high protein treats. I have spent a small fortune trying to do anything I can so my hens look “normal” again. I have tried different bedding. I have treated them with Vetericyn, Blu-Kote, Pick No More. I have given them baths and put anti fungal ointment on them. Their egg production hasn’t changed. They are good layers. What am I doing wrong? What am I missing here? Are they suffering from this? My husband thinks it’s time to get rid of the chickens, I just can’t do that yet. Can anyone please help me? (I’m including 2 pics. I do have some hens that look worse now with their backs bare and the redness on some of them is alarming. I just haven’t taken any pictures of that yet.)