dysuria
"I have interstitial cystitis and also just finished a Z Pack for a sinus infection.  I got a yeast infection and was in desperate pain, extreme burning , swelling etc. I took a 200mg Pyridium pill and cut in half, as I remember how nauseated it had formerly made me. I weigh 110lbs and I am sensitive to most medicines, so I like to start smaller. I suggest you take it with food as it says that it doesn't interfere with the affect it has.  Will make your urine bright orange, so watch your white clothes."