I had a condom rupture accident last July ,a few weeks later I noticed a complete round pinkish to red discoloration on my penile as big as 4mm,it's flat ,no elevated borders,no ulceration, not itchy,not painful either,it contained nothing because it was flat with normal texure of the skin,herpes,syphilis,Hiv test all came out negative for two times each.My Doctor was able to diagnose it and just prescribed triamcinolone 1%cream ,I used the cream ,it disapeard completly because of the cream or by itself and backed to normal as if it never happened.About 3 months later all of a sudden the same thing happened exactely on the same spot(not another area) but the size was bigger this time (about 6 mm) with the same characteristics,I have had no discharge from my penise and urination and ejaculation are normal and its size is stable when it happens ,have no fever or any other sypmthoms.Any idea what it could be?