This is an 8 year old thread, and the OP has not been online since. You would be better off to start a new thread of your own on the emergency forum, with pictures and details of your hen’s problem. You can post a new thread here—click on the blue box “post new thread” in the center of the page:I know this is really late, but i hope you see this. What happened with your hen. I have a Serama hen same issue. Her skin is thick crusty, peeling. Like a thick layer caught between feathers and skin... peeling face, everywhere. I have tried just about everything to try and help her. It also started after I treated her for scaly leg mites. All the others were fine but she developed this skin condition that I just can't seem to get rid of. She looks awful, and I am sure it can't feel very good. Hope to hear from you.
https://www.backyardchickens.com/forums/emergencies-diseases-injuries-and-cures.10/