Corns show up on the bony area on top of the toes and the skin between the toes. Corns feel hard to the touch, are tender, and have a roundish appearance. A small, clear spot called a hen's eye may form in the center. Calluses can occur on any part of the body that goes through repeated pressure or irritation. Common places are on the balls or heels of the feet, on the hands, and on the knees.
Calluses are flat, painless thickenings of the skin.
Corns and calluses form as a protective response. He or she can scrape away the hardened tissue and peel away the corn with stronger solutions. Never pick at corns or use toenail scissors or clippers, a razor blade, or any other sharp tool to cut off corns. You may injure your skin or trigger an infection. Soak your feet in warm water to soften the corn.