I posted a few days ago about my Pekin duckling who appears to have a niacin deficiency. I started giving her much larger amounts of brewer's yeast, and today I got her some niacin. One of her legs looks almost normal now, but the other one almost looks worse. It's very swollen and bowed out. I'm really worried about her having permanent damage or dying. I tried to get a picture of her, but I couldn't get her to sit still or stand for long enough to get a clear one. Is there anything else I can do or am I just going to have to keep watching her to see how she does?