Corns are small, concentrated areas of hard skin which are conical in shape. The point of the corn can press on a nerve below causing pain. They usually form on the tops and sides of toes and over bony prominences on the ball of the foot and can range in size and pain. They are caused by repetitive pressure and/or friction, the most common cause being ill-fitting shoe wear. Some corns form in between the toes and these are known as soft corns, which occur due to sweat and insufficient drying.
Never try to remove a corn yourself and avoid using self-treatment remedies such as corn plasters/pads. These contain acid and can cause more harm, especially for people with Diabetes or poor circulation. A podiatrist can painlessly remove the corn and help alleviate the pressure with suitable padding.