Hello This could be related to dryness or infection of head of the penis If I were your treating doctor I would have advised you for a battery of tests to rule out infection first. In my opinion you should wash it with antiseptic solution or soap and keep it clean and moist You can apply antibacterial ointment like mupirocin or soframycin. If it doesn t improve in a week than you must visit doctor for physical examination and a series of investigations to establish a diagnosis. Hope this answers your question Please feel free to ask for follow up questions I will gladly answer you wishing you good health and speedy recovery REGARDS