I have a young Silkie who has something going on under its wings. I just noticed it this evening. It looks like dry skin, with yellow flakes in places. I've not yet been able to figure it out. I had been rubbing a drop of VetRx under its wings, but not for a couple of days. Diet, doing it's business, foraging, and behavior all seem normal. Could this be from molting? How can I fix it?