My foreskin doesn't go beyond the penile head from childhood. As such I had no problem of pain or discomfort. Suddenly I found a red patch on glans penis and some reddened rash like presentation around the shaft. I don't know how long it was there. When it was not resolved by normal cleaning. I went to a skin specialist cum venerologist who got me tested for vdrl, hsv1, 2 ,hiv and all report came negative. Cbc is also wnl. I have no history of unprotected sex outside my marriage. The doctor recommended me cifran d for 10 days, 6 fluconazole tablets and luliconazole ointment and beta dine solution to apply. The loss and shaft rash cured (very little red spot on glans is still there but reduced 90%). Suddenly I found that a black vein like swelling in the opening of urinary passage. It's sometimes giving mild stinging pain, especially if I have masturbation or sexual activity. Also I am feeling the penis numb or full sometimes. I may overestimate the "feeling" part as I am excessively stressed with sleepless night. Once long back I had some painful traumatic twitch during sex in my penis. occasionally painful retraction of foreskin also during sex. I masturbated more than I had sex. Is it injury? Infection or some cancer? Should I show venerologost or urologist?