Corns are formed by localized keratosis due to frequent friction and can be treated with medication, surgery and physical therapy. 1. Medication: Before using corns cream, salicylic acid ointment and urea ointment, you need to soak your feet in hot water and scrape off the softened keratin. 2. Surgery: For severe pain, use a scalpel to dig out the corns along the edge of the keratinous plugs after local anesthesia, and then use sterile dressings or gauze to cover. 3. Physical therapy: Liquid nitrogen freezing method refers to the use of low-temperature liquid nitrogen to freeze the corns locally, and the corns will turn black and fall off after a few days. Now the clinical often use anesthesia-free CO2 laser treatment, can avoid damage to normal tissue, general treatment caused by the window is small. The above drugs should be used according to the doctor’s prescription. If you have corns related manifestations, you need to go to the hospital as soon as possible, by the doctor according to the specific conditions, to develop individualized diagnosis and treatment plan, so as not to delay the condition.