Suggest Treatment For Frequent Urination

I AM 29 YEARS OLD I HAVE FREQUENT URINATION SINCE 1 YEAR ONE UROLOGIST TOLD I HAVE PROSTATITIS AFTER DOING SYSTOSCOPY BUT ANOTHER DENIED AFTER DOING TRUS . NO ANY SYMPTOMS IN URINE AND IN USG, BUT S AUREUS WAS ISOLATED IN URIINE CULTURE . NOW I HAVE SEXUAL DESYFUNCTION. I AM REALLY DEPRESSED I USED OFLOXACIN FOR 10 DAYS BUT NO PROGRESS