My chicken, Ms. Kitty, got into sewage ( still being fixed ) and started eatting and drinking out of it along with are other chickens. So far everyone seems ok except Ms. Kitty. She is always laying on her belly, has yellow diarea, and is not a food hog like usual. Please someone tell me what I can give her to make her better. Some type of antibiotic or something?! Thank you!!!! P.S. First time chicken owner.