I have discoloration of the skin around my penis, just below the head. This began a day or two after my wife and I resumed our sexual relationship after four years without. We have been quite aggressive and frequent for the last week. The skin has lightened noticeably, there is no pain, no itch, no dryness at all. Also a couple of light patches on my scrotum - again, no pain, etc. These are not bumps or blisters, simply lighter skin tone.