My hen was being bullied. 2 others are pecking her feathers out above her tail. It is raw meat with a deep whole. Now she is doing it more to herself I have been using vetericyn hen healer and pick no more. Nothing is helping I don’t see any bugs. They are not overcrowded how do make her stop I isolated her for a day. I just ordered a big cage but I think it more herself now. The others aren’t bothering her much