I have two frazzle (double copy for the frizzle gene) bantam Cochins that have some sort of skin problem. They were from a big commercial hatchery, and of the 26 day-old chicks that came, only the frizzle (three frazzle, one frizzle) had this skin issue, pictures below. They've had this skin inflammation from very early on but I didn't notice it. Two of the four have died, one from a dog attack and one I believe from some sort of blocked crop I didn't find early enough. The skin does not seem to bother either bird at all. The pullet is laying frequently. There doesn't seem to be any debris or scabbing that would suggest parasites. The inflammation is greatest where the skin is exposed, a strip down the side of the leg, the keel and the underside of the tail, the oil gland and vent area. It is not on their head, neck, back (other than the tail) wings or under the wings. Because they are frazzles, they have very, very poor feathers so there is a lot of skin exposed. They have not been sunburned. I thought it might be a sensitivity to pine shavings, so I've switched them to hay. I have washed them a couple of times in Adams flee shampoo, and they improved a bit. I've dusted, basically packed their feathers, in DE. Nothing has solved the problem. Any ideas? I'm tempted to want to try antibiotics or even an anti fungal, but am no sure I want to invest in the vet bill. I'm tempted to take them to an avian vet for skin scrapings, but personally think many avian vets' focus is to make as much money as possible, not supply good veterinary medicine to birds. This second picture below is of the underside of the tail. I had just bathed him. The bird is on his belly with the tail pulled up and forward, pointing to the upper left. The vent is to the bottom right. The skin has a leathery quality to it from chronic irritation. Thanks for any suggestions.