Corns are thickening of the stratum corneum induced by long-term pressure and friction. The corns on the feet can be coated with salicylic acid ointment, urea ointment and other topical medications, but also corns excavation, foot deformity correction surgery and other surgical treatments. 1. Topical medication. Since corns are caused by the prolonged friction and pressure on the foot, which leads to the proliferation of the cuticle, it can be treated by applying salicylic acid ointment, urea ointment and other medications to soften the cuticle as prescribed by the doctor. 2. Surgery. Corns can be dug out through corns digging out surgery, but the recovery is slow and scarring may occur; because people with foot deformities are prone to corns, therefore when corns are accompanied by severe foot deformities, they can be treated through foot deformity correction surgery. When suffering from corns, in addition to applying medications as well as surgical treatments under the guidance of a doctor, pay attention to soaking your feet every day and wearing loose shoes in your daily life.