Thanks for the responses. I've read up quite a bit on this oral thrush since somebody on the boards brought to my attention, that could be what's causing my bad breath (since I never had it before I began the advair inhalor). I do rinse out my mouth every time I use my advair inhalor now, but I guess I just don't want to go to a doctor and sound stupid by saying "I think I may have oral thrush" and then clearly not have it. I do have some of the symptoms, but I'm also a cheek biter, so I'm not too sure if it just looks like I have it because of the cheek biting, or if I actually do. I guess I should just go to see a doctor and find out for sure.... But I'd still like to know your guys' experiences with having oral thrush. What did it look like? What made you think you had it? And so on... Thanks again!!