Corns are related to overgrowth of keratin, and must be treated early and paid attention to daily care. 1. Treatment: Topical medication such as corns cream and salicylic acid ointment can be used to help soften the keratin; surgical excision can also be performed; in addition, freezing and laser can also be used as appropriate methods. 2. Nursing care: comfortable and loose shoes and socks should be worn to reduce friction and extrusion on the feet; corns pads can also be used; high heels should be avoided; hot water can be used to soak the feet appropriately, which can promote local blood circulation. Patients with long corns on the soles of the feet should seek timely medical treatment under the guidance of a doctor, and medication should be prescribed by a doctor.