I have same problem. I've been on abdek all my life and I really don't know what it is that causes it. I do suspect some medicines, but my heels for me are the worst. They're so bad I've considered seeing a dermitologist. but what would they do except tell me to put some prescription lotion on it? I use body butter (bath and body works) and fangpai manoi oil. The nurse in the hospital also told me my hands were dry. I've almost given up my dry skin is so bad.