To treat corns, the most effective over-the-counter option is salicylic acid, available as medicated pads, liquids, or gels. This helps soften the hardened skin. To use it safely, soak your feet in warm water, gently file the corn with a pumice stone, and apply the treatment only to the affected area. However, curing corns permanently requires removing the friction causing them. Ensure you wear comfortable, wide-fitting footwear and use protective, non-medicated silicone or moleskin pads. If you have diabetes or poor circulation, please avoid self-treatment and consult a healthcare professional or podiatrist to have them safely managed.