A corn is a development of thickened dead tissue on a toe due to irritation. Corns can quite painful. It is typically due to mechanical irritation of the toe up against the shoe. The reason hammertoes are painful is either due to a corn or bursitis, which is an inflammation of the toe. Swelling sometimes occurs under the toe where the pressure is. It is important to be evaluated if you have a corn because the corn can become quite thick and can also cause an infection or ulceration (breakdown in the skin). Infections and ulcers can be dangerous with risk of bone infection and/or gangrene.
We commonly see this in diabetic patients who do not pay attention to their feet and present to the doctor's office with a swollen toe after weeks of bleeding and swelling. Most importantly we recommend being evaluated for this problem by a podiatrist. Multiple treatment options are available. Simple peeling of the corn can usually provide relief and a shoe gear change. Accommodative shoe gear is one way of conservatively treating the problem with an extra depth shoe or very wide sneaker. Many times the shoe is more the offending factor. If the toe is still swollen and painful after debridement we recommend possible cortisone injection. Lastly if conservative treatment fails we recommend a surgical procedure where we remove a small piece of bone and straighten the toe with very little post-op course.