Sorry about your bad experience. We've all had them. Even people without this specific issue (candida) know that most doctors suck. They never listen to you, don't care about your opinion or your input. Because they think they know everything and that all patients are ignorant. I'm sorry, but the god-complex is alive and well in the medical community. They believe they know more about you and what you are experiencing than you ever could, because, of course, they are God and are omniscient, therefore, they do not need your input, opinion, or even description of your problem. They certainly don't need to know what you believe would be helpful.
You can try again for a different doctor, hoping to find one that is actually helpful and not merely sneering, or you can go it alone. It sucks. Believe me, I know.