The problem here is that not only candida has spread to your bladder. Candida comes with an array of bacteria. THey all proliferate in an acidic environment. So now you need to kill both the fungus and the bacteria.
Stick to the diet, or better go for a raw veggies and protein diet.
Vitamin C is a must - cranberry juice will also protect the bladder lining and avoid oxydation (and it is full of vitamin C). To kill the bacteria naturally you may use
black walnut Wormwood and clove.
Lots - lots of water - an egg with vanilla in almond milk for breakfast and soup.