Hallo, I am 65, I have been having periodic itching on my back, ie the itching goes away for awhile but comes back, seems to travel, ie when I scratch my back, then It itches on my calf etc. Also, it itches between the legs and now sometimes on my Penis. Today I saw that the skin on my Penis was dry and when I rubbed the head and shaft, the dry skin peeled off. Again, the discomfort is intermittent, generally just before I go to bed. I get refief if I wash the legs, back, the area berween the legs and the Penis with very hot water ( shower) What could be the matter?