I've got a 5 year old BCM hen, i noticed yesterday she is very lethargic and not eating or drinking. She has yellowish white diarrhea around her vent, but pooping very little. Her bottom in between her legs and below her vent is swollen, squishy, hot, and bright red. She is pretty weak but can walk around. She falls over and can't get up but she isn't completely horizontal. It's just if her legs get knocked out from under her from jumping or something. She's only laid 2 eggs since Feb. I suspect either she's egg bound with an infection or just a general abdominal infection. What sort of antibiotic/penicillin should I get at TSC? What's the dosage? What other ways should I treat her? Thanks.