There are dietary changes people make for IC that can be helpful. Switch to mint tea from coffee is one thing.
It could be interstitial cystitis. For temporary relief you could try Azo-Standard to numb your urinary tract. I mean NUMB it. This may be disconcerting for a man whereas not so strange for a woman, but it may give you nice pain relief for a little while. However, it turns your urine fluorescent orange.