I have a chicken that has had a raw butt for a while. I did have a problem with lice and mites but I have since taken care of that problem. The feathers never grew back. I have just noticed that she is acting odd. She is just standing around. She looks like she has her feathers puffed up. I caught her to look at her and I found that her belly is raw also. There is signs of feathers growing back but I am worried about her. If anyone has any suggestions I would really appreciate it.