I know, it sounds strange. My oldest son's beloved hamster, Rose, has somehow acquired a rash on her chest, neck, and mouth. It is very red and swollen. We have 3 hamsters and 2 mice, all housed separate (except the mice live together). All get the same exact bedding and care and nothing has changed recently. None of the others have this problem. I cleaned her cage a few minutes ago and carefully checked for anything that could be causing an irritation....nothing found. I searched her little body carefully, too, and didn't find any mites or anything. There is no vet in the area that takes care of rodents so I am totally on my own with this. Any suggestions would be greatly appreciated. My son is worried sick and I must admit, her granny (yeah, that's me) is too.