Had uti, took bactrim (sulfamethoxazole and trimethoprim) and 1 diflucan pill to take after. 2 weeks later have a lot of burning in vulva and itchiness. is this a yeast infection?

UTI treatment: Frequently Bactrim (sulfamethoxazole and trimethoprim) will successfully treat the bug causing your UTI. But sometimes not. I would get a mid-stream collection of your urine at the lab and send it for a culture and sensitivity. That test will what antibiotics will kill the bug. Your doc can check to see if you have a yeast infection. I counsel women to eat yogurt with live cultures when I prescribe an antibiotic.