Mollykins - do you have hyperhidrosis - which is excessive sweating of the palms, undersides of feet, armpits, groin, etc? I never gave this a second thought in myself (always knew that my feet were always sweaty) but when I had to have my leg in a plastic boot (broken ankle) for at least 8 weeks, all the skin on the underside of my left foot peeled off. Oh boy, it looked yuck! The physiotherapist diagnosed the condition immediately. You don't have to have it in all the above mentioned body areas, just one or more ....