I bought a pullet at a swap yesterday, and she looked healthy. Once I got her to my car I noticed her wheezing, coughing and sneezing. It's not a normal sneeze, but an EXTREMELY mucus-filled, nasty sneeze. Other than these symptoms, she was fine. I asked the seller, and she said she never saw anything like that in her flock. I went into TSC and bought some VetRx, because that was the only thing there that would treat respiratory illnesses. There wasn't anything there like Tylan, Tetracycline, or anything that I've read on here that treats respiratory things. I gave her ACV in her water, and she drank a lot of that. She's eating great, but is EXTREMELY skinny. Her keel bone is very prominent. Sometimes when she coughs, little rice sized chunks of what looks to be food comes out of her mouth. Today, she got worse. She has diarrhea, and it's pretty much the consistency of baby food. I gave her the VetRx into her nostrils, and will give some to her orally tonight. I'm using the bantam dosage, because she's about 8 or 9 weeks old. She's quarantined already, and hasn't had exposure to the other chickens. I'm extremely careful not to spread it to my other birds. So what should I do? I need help!