Within the last couple of weeks are so, I have the sensation of a patch on my back- sort of a rectangle formed by my two shoulder blades. It isn't painful and I can't really describe it as "itching". I've asked my wife to check and see if there was a rash or skin irritation but found none. Any ideas as to what it could be. Again, it isn't painful and I can't say it really itches. Could it just be dry skin? I'm a male, fifty four years old. Any help/opinions would be appreciated!