question: Hi There,I have a what starts out as small eraser tip rashes on my penis head that seem more bright after urination. However aprox every 4 months or so turn into a very itchy and swolen rash only on the top of my head of my penis. Itches horibly, then subdues 1wk later and gets very dry almost flaky. I did have un protected sex 1.5 years ago but I think I recall having this problem before. Just worried... and irritated.Thanks