So I got a trio of chicks (EE, barred rock, RIR) in November and the RIR developed what I thought was coccidiosis (runny stool but no blood, lethargic, matted poop on butt, loosing feathers, just not doing well). I separated her and treated with Corid based on the dosages found on here, she responded well. While she was being treated the other 2 went out to the coop with my bantam flock. Of course they were bullied and timid at first but they’ve continued to grow well and are doing fine. Anxious to integrate my sick RIR into the flock I put her out as soon as her corid treatment was done. She’d been separated from the other 2 for about 3 weeks at that point. Well she’s doing really poorly; not growing, not venturing out of the coop, I’m having to bring her inside each day to eat and drink. It’s too cold for me to sit outside and make sure she’s eating and if I just set food in the coop the other chickens push her away. Every day her crop is empty. She eats and drinks well inside but stays puffed up and hasn’t been grooming well, she falls asleep as soon as she’s done eating. Her stool is formed, her comb is pale, no wheezing, nasal discharge, no other chickens are sick. I just don’t know what to do with her! I worry by babying her she’ll never fend for herself but I’m certain she’d waste away if I didn’t. I don’t know what to treat her with because she’s got no symptoms other than being wimpy. Help!!