Tracy, your dentist is wrong to give you an aggressive dose of anti-fungal. this can make you sick, he is a good dentist but i see he doesnt really know much about the body and detoxing.
I would follow the diet, get a probiotic from the health food store, and if you want to take an anti-fungal, take something like Olive leaf capsules, but only take it 2 times a week, everyday will be too much i think for your liver.