Hello, my silkie hen "Gerri" has not had much luck lately. She has a terrible sore/injury on her rear. I have given her a bath, and have been putting Neosporin on it. Its a lesion about a quarter in size. The other hens in the coop must have picked on her for a day or so, before I noticed she was bleeding. She is indoors and being kept warm. She is eating, drinking, and pooping fine. No more bleeding. The lesion looked a little oozy tonight. Layer of pus on top. I know thats healing, but is there an antibiotic I can put her on so she doesn't get an infection? I could only keep it so clean. Its near her vent and I don't know if its better to keep it moist or let it scab. If she lays an egg, she may open it up again. If there is an antibiotic I could use, please let me know and where I could get it, I'll run out in the morning. Thanks!!