It is really interesting that any doctor doesn’t deal with candida. Are you sure? Maybe you don’t know where to look? The same thing happened to me few weeks ago with my inner ear problem. I really didn’t know where to go, but I did some research.
Due to that today I made another research and I have found one site that could be useful to you. It is a site with all kinds of doctors you should visit it. http://www.doctorstypes.com/