Phenazopyridine
"I have no clue what is wrong with me. After three months I am still suffering from constant urge to pee / frequency.  I had the sensitive urine cultures and oddly enough bacteria was found. Funny how you can't find any bacteria with a regular test. I don't have pain yet just frequency and no leaks!  So I'm going for another opinion because all bacteria is gone. Doc says just residual inflammation. Come on now! I doubt it.  So I take pyridium whenever I flare bad. It helps cut the frequency to 1 time every 1.5-2 hours or even longer. It's amazing. Yes I pee less and love it!  Without it, I go 5 times in one hour. Makes me so sad"