Then ask your provider to teach you how to prevent corns and calluses in the future and how to care for your feet every day at home. You may need to see a foot specialist (called a podiatrist). Corns and calluses usually go away in 1 to 4 weeks after: 1  You stop the activity that caused a callus. 2  You stop wearing shoes that are causing problems. 3  You start a program to protect or soften the skin.