My favorite hen is unfortunately also my young rooster's favorite. She has been hanging around in the coop for two days, I thought it was because she was avoiding him jumping her five times a day. I picked her this evening and realised she has two deep gashes on her back, one stinks with gangrene. I gave her antibiotics in her water, and vet Rx for chickens. What else can I do? Can I apply anything directly to her wound or is it too late as it is so infected? Can a vet do anything for her? She seems perky right now but I am worried she is going to die of blood poisoning. Any advice is appreciated!