I am having this problem from last year. White spots come on under the foreskin of penis or there is some redness. It goes for a week or a month but comes back. I had used quadriderm ointment on it and for few days it vanishes but comes afterwards. I also used candid b lotion n took if in 500 for a week as prescribed by one of the doctors here on Lybrate, every thing went good for like a month but again it started developing that redness which after few days starts to look like the skin has started shedding, and after a long a long again this white spots has come. What I have noticed is it happens to me after masturbate. I don't know whats wrong because I keep it clean and wash it with water almost every time I urinate or masturbate or have sex.