One of my chinchillas has a strip of fur missing in the middle between her nose and eye. At first we thought it might be a fungus, even though there was no reddness or skin irritation and started using the powder in their dust bath as suggested by my vet. That was two weeks ago. So far it is just getting slightly worse. (Very slightly, but enough that I can tell.) My Vet said that he thinks it is "kennel nose" now (rubbing of the nose on the cage). Now I worked at an animal shelter for 10 years and this condition would normally happened there in the small cages, but my chins live in a 6ft tall cage and have run of my bedroom and bathroom in the evenings when I come home from work, so I don't really think that this is the case. Does anyone have any ideas? Thanks in advance for the advice.