I am not sure. It would seem to me that if you have candida, you should respond to at least some naturals. However, I am not 100% sure of that. It can't hurt too much to try a prescrip. I use an online pharmacy to order stuff, and the one I use is safe. Here is a link. It is not Canadian, it is in the U.S. The prices are high-ish, but that is the trade off for choosing a US one over a canadian one. There are other things out there (see posts by Shroom in particular) that can mimic candida's symptoms, and it may be worth it to see if it is another organism or pathogen (parasites?) that can cause the same symptoms. The lab that used to be called Great Smokies (if you google it, you will get the correct new name) can do a pathogen break down test based on yur stool samples. Your Chiro can order it for you, I think. You "maye" be able to self-order. They are not cheap, tho, but if it pinpoints something else, would be quite worth it.