Hey ,I love Sun and have spend all my summers in the Sun( 50 years ),last three years my left arm at the end of summer gets dry and itchy,i have gone to two Skin Doctors the first year and both doctors have said it is just dry skin.last Doctor priscribed the Clobetasol Propionate cream USP,0.05% and i have used it for couple of weeks and my itch have gone away until next July comes back ,because of me being in the sun ( I do apply Sunsreanof 30 on my face and body every day when i am in the Sun) this July itching started again and i started the cream ,but does not seem toget read of it ,so I wanted to know why from my whole body only left arm gets so dry that itches where my whole body is always in the Sun,and why this year this cream is not helping me ,and what kind of home remedy or other medicine i can use ?