Hello dear I understand your concern Your symptoms could be due to stretching injury caused by the rough sex, vaginal/lower urinary tract infection. Take following advises: Take warm water sitz bath with added betadine Tablet pyridium Lactobacilllus suppository Wash vagina with warm salted water 2-3 times then apply apple cidar vinegar. Drink plenty of water and juice of cranberry If problem persists then consult the gynaecologist and undergo vaginal examination, urine test and vaginal swab test to confirm the cause. For infection antibiotic course is require. Maintain proper pelvic hygiene before and after sex. Avoid rough sex, use K-Y gel based lubrication gel to prevent the friction injury Hope this will help you Best regards Dr. Sagar