They are caused by repeated friction and pressure from skin rubbing against bony areas or against an irregularity in a shoe. Corns ordinarily form on the toes and calluses on the soles of the feet. The friction and pressure can burn or otherwise be painful and may be relieved by moleskin on the affected areas. Never cut corns or calluses with any instrument, and never apply home remedies, except under a podiatrist's instructions. Foot odor results from excessive perspiration from the more than 250,000 sweat glands in the foot.
Daily hygiene is essential.
Change your shoes daily to let each pair air out, and change your socks, perhaps even more frequently than daily. Foot powders and antiperspirants, and soaking in vinegar and water, can help lessen odor. Hammertoe is a condition in which the toe is bent in a claw-like position. It occurs most frequently with the second toe, often when a bunion slants the big toe toward and under it, but any of the other three smaller toes can be affected. Although the condition usually stems from muscle imbalance, it is often aggravated by ill-fitting shoes or socks that cramp the toes.