Hello, sorry first post and its a "my chickens sick". Shes been ill for about 3 weeks now and we have gone through all the "basics" treating for lice and mites, worms, coccidiosis etc and she doesn't seem to be getting any better. I started with her back looking a bit wet and her pulling feathers out and then one day she just stopped moving around and would hide in a corner. We discovered that the reason she isnt running arounds is that she is covered from her thighs up in a thick crusty yellow/white skin and it is just flaking off her. Her thighs are the worst (black and crusted), her back, front, neck, bum, under her wings...everywhere is covered. Even her face has a covering of white poweder flecks and the occasional brown "dot" where we assume its cracked. The only place she doesnt have it is on her exposed legs. Shes in so much discomfort shes been pulling feathers out around her neck and we *think* that in other areas they are just falling out. When she moves she emits a plume of dust which I had assumed was from my wife doing mite treatment until she told me she had stopped last week! I've been thinking possibly favus or something other fungal but I am at a loss since it seems so much more extreme and extensive than I had read favus was. The only positive is that she is eating (although her poo has been runny and turned green today!) I'll get some photos up later, but has anyone any suggestions/ideas of what it might be and how to treat it?