Corns are cone-shaped corns that appear on the foot, mostly due to long-term extrusion and friction, and can be accompanied by severe pain, which can subside on its own. If it does not subside, the treatment methods are as follows: 1. Excavation. Go directly to the hospital for surgical debridement to remove the skin lesion. You can also choose to apply ointment to soften the corns and then gradually dig out. 2. liquid nitrogen freezing treatment. 3. laser burning. Through regular treatment, it can be cured. Corns are important for prevention, usually wear comfortable and loose shoes and socks, do not wear high heels and hard-soled shoes, develop the habit of soaking your feet, and seek medical attention in time if you find abnormalities in your feet. Eat a light diet, eat more vegetables and fruits, replenish vitamins and trace elements, and enhance skin resistance.