What Is The Treatment For Red Dry Patches In The Chest And Arm?

hi i M 48 YRS I HAVE RED , DRY, PATCHES ALL ON MY ARMS AND CHEST. IT STARTED WITH JUST A PATCH 3 WEEKS AGO AND HAS SPREAD I ALSO HAVE BEEN GETTING HOT FLASHES THE LAST MONTH. I SHOULD TELL YOU I ALSO JUST RECENTLY MOVED TO EAST COAST, 10 MONTHS AGO FROM HAWAII WEATHER FOR 15 YRS. DO YOU HAVE ANY IDEA WHAT IT IS?