Hi, I have a chicken, about two, who has had issues with her butt for a long time, Poo would always stick to her butt, and feathers won't even grow there anymore. Anyways today I noticed that her butt area is bleeding! (It's bled before, but this time it's really bad). I couldn't investigate because I had to leave for work, but I came home and it looks horrible. I feel bad for her what should I do??