My flock has been dealing with sneezing so i have been treating them with denegard. One of my bantam wyandottes is not sneezing and there is no noise when she breathes like the others but she is lethargic and wobbly on her feet. She was keeping to herself and was fluffed up. I seperated her and gave her a shot of LA 200. Her poop is a watery pale green. Is there anything else i should do?