Try to follow an alkaline diet. Drink 1 tsp baking soda dissolved in 8oz water when really bad.

One of the best things to drink is sugar free cranberry juice
It prevents bacteria sticking to the wall of the bladder
You can also buy Cranberry supplements

Yep I agree. This was one of my first fibro symptoms and sent me running to the urologist.

I third that a tablespoon of apple cider vinegar and cranberry with pomegranate juice and 6-8 pints h2o

My mom does this for her interstitial cysitis with good result. Also good for indigestion. But, like everything else, use caution due to sodium content.