Diabetics should inspect their feet daily. Use a mirror or ask for help if you need it. Look for any calluses, corns, cracks, or blisters. Check between your toes. If you notice anything, seek medical attention – do not self-treat! This is in addition to the fact that you should take your shoes and socks off for a foot exam each time that you visit the doctor.
Feel the inside of your shoes before putting them on. Look for foreign objects (pebbles, etc), or any holes or seams that may cause irritation. Do not walk barefoot, even at home. Wash your feet in lukewarm water and pat them dry. Apply a good quality lotion, but not between the toes.