One year old BO hen has black growths on both sides of her comb and her eyes. I thought three of my hens were fighting but this isn't getting better, it's getting worse. I noticed it a few days ago but just now I looked again and it's worse. Her one eye has it on the white part and it has little bubbles around it. The other two hens are starting to get some on their combs and outside their eyes. They have been with my BO rooster for about a week and a half. He doesn't have any signs of it on him. I have 6 other hens and a bunch of chicks we hatched out in another coop. I switch the hens out about every 1 1/2 to 2 weeks with the rooster - three at a time. All of my hens seem to be doing fine. These three are active, eating and drinking. They are still friendly and laying eggs. Is this some kind of disease or could it caused by the heat-it's been up to 106 everyday for a week?