One of my Wyandotte hens may be sick. Most of them have bald spots (I believe from over active roosters) but I noticed a spot on this one that looks like an open wound. Sprayed with BluKote and also dropped on some Vet RX as we had mites last year. Her comb and wattles are very pale and yesterday she was in the nesting box - I put some food in there for her so she would eat and stayed while she ate it. Any ideas?