There has been some discussion here about root canaled teeth and/or absesses contributing to thrush and/or nasal candidiasis. So you might consider the health of your teeth if there has been no resolve. There was a poster awhile back who was indeed cured of her nasty nasal discharge with a course of fluconazole. 10 days I think she said. She was VERY happy.
Other than that, I think most of us know that traditional medicine does not understand the high frequency of candidiasis in Westernized communities or how to treat it, even if recognized. I do sympathize. I went to the same internist for 6 months to search out the source of my problems. She never found candidiasis, which I eventually found on my own. Her solution was to send me to her friend, a psychiatrist. I didn't go. I fired the internist. Then I was really on my own in the days before Internet. What a story......
Very few posting here have had an easy time of this with little medical support.