If you have to eat grains, cut the bread and pastas and choose quinoa, millet and brown rice. Much healthier alternatives.
One of the best things you could do for candida overgrowth is drinking homemade goat milk kefir. If you can't get goat milk, don't let that stop you and go for cow milk, preferably organic full-fat (raw is best but hard to get). Consuming kefir, even from cow milk is very different than drinking the milk alone.