I have been treating my hen (3 yo Cochin X bantam) for scaley leg mite with Vaseline because her legs were looking thick and she was starting to limp. I checked her feet for Bumblefoot and could not see anything. She has also gotten a bit skinny but still eating well. She constantly picks under her, I thought it was because of the Vaseline on her feathers, and the shavings sticking to her. But this morning I noticed she is missing quite a few feathers (big bald patch) right in front, where her crop is. Also just to the side is a horrible thick scab, callus thing. It is dark red, and lumpy. I don't think it was ever wet or gooey or open at all. I started putting Neosporin on it and started her on Penicillin. She isn't herself, she is still eating, but off, tail feathers droopy. She perches at night. I took a photo, her feathers are awful looking because of the Vaseline and her dustbath stuff . Any input would be appreciated.