Hello I can understand your concern Looking at your history this could be due to STI or local injury or inflammation during rough sex if you can upload me a complete medical history and a photograph I will be able to guide you better meanwhile you can consult your GP for examination a day a battery of tests like blood for CBC liver and renal function test urine culture you may require a course of antibiotics under supervision of your doctor have plenty of fluids maintain good hygiene thanks for your question wishing you good health Regards