Respected ma'am, On account of you tell me to contact you for my problem, I'm writing this letter. I had done the urine culture long back and had some PUS cells detected in it. My doctor treated me that time but the problem reoccurred again after having an intercourse. I'm really searching for a medicine to prevent this but have found none. A doctor advised me to take niftran tablet after having intercourse but I'm not sure whether its safe for me or not. Please help me. Yours sincerely, Mrunmayi Joshi Age: 18 female.