I have a black penedesenca rooster that is about 6 months old. He has a dark purple colored comb now, is sneezing and wobbles around. He kind of always wobbled, but it has gotten worse. Some of my other hens that are about the same age have the same respiratory symptoms with nasal discharge also. So I mixed some powdered electrolytes into their water and added some VetRx, which is basically like Vicks for chickens from my understanding. It has seemed to help some, but they are still presenting the same symptoms and the rooster's comb is still the same. I checked his feathers and I think he has lice because I found small tan colored bugs around his vent area. Don't know if that could cause the comb issue or not, but the respiratory problems are still a concern. The hens are also getting white stuff and manure, that is matted to their bottoms. I thought about adding duramycin to their water, but didn't know if that would help. This is my first thread, so I tried to be very detailed and do everything like I'm supposed to. Any help would be wonderful! Thanks!! Will try to add pics later.