My penis has patches of dry skin on certain areas and has been like this for about 3 months now. It first started with one small area of dry,black skin then it escalated to other areas. It also became red and sore at a certain point which was when i applied clomaderm plus body lotion(intended for very dry skin). The redness subsided and so did the dryness but now it spread to my upper back and there is still a small area on my penis which still gets dry throughout the day. Help please.