Pineapple contains an enzyme called Brometain that softens and breaks down dead skin.
At night just before bedtime soak your feet in warm water for 20 minutes to tenderize the corns. Cut out a square piece from the pineapple peel. Rest the inside of the peel directly on the corn. Use tape to attach this piece onto the corn. Cover with socks and leave on overnight. Apply for 5-6 nights consecutively.