Corns, also known as thorns, often grow on the toes and the front of the soles of the feet. This disease is often caused by wearing tight shoes or having deformed foot bones, which causes long-term irritation of the foot skin.

Corns are conical keratin hyperplasia and induration, with an uncertain number. The roots are deep, the skin is thickened, and the top is convex. They often cause pain and affect walking. There are many methods to treat corns, and various corrosives are commonly used, such as salicylic acid. You can cut a round hole in the center of the adhesive tape, the same size as the corn, stick it to the affected area, expose the corn, sprinkle with salicylic acid powder, and then seal it with adhesive tape. Generally, the dressing is changed once every 3 to 5 days. Before each dressing change, remove the residual powder, soak the skin in hot water, and scrape off the softened cutin until all the corns are removed. Friction and squeezing should be reduced, suitable soft-soled shoes should be worn, or sponge pads should be used to reduce local compression. If you have flat feet, you should wear orthopedic shoes.