Had sex on thursday,burning in my vagina the next day.i went to the doctor tuesday put me on smz-tmp for 3 days finished it today but still burns?

Vaginal burning: It sounds like your doctor treated you for the symptom called Dysuria , a sign of a UTI. Was a condom used during sex? Unprotected sex increases the risk Was a vaginal exam performed? If not that is the next step to rule out a vaginal infection or vaginal lesions. Either of these can present with your current symptoms. Vaginal discharge should be noted as well as the presence of othe rsymptom