About 3 days ago I noticed one of my buff hens was having difficulty walking. I also noticed her comb and waddle is very shrunk. They are red in color though. Shes still eating and drinking (drinking quite a bit at times). Brought her inside so she will be warmer. Is there any home remedies I could try to get her better? Its dead of winter here so I don't know if pests are just as bad but I looked and didn't notice any.