Corns are clear boundaries of yellowish or dark yellow conical keratinous plugs, the treatment has medication, physical therapy, surgical treatment and other treatment methods. 1. Medication: topical medication such as corns cream and 50% salicylic acid ointment can be used externally. Before each change of medication, soak your feet in hot water and scrape off the soft and whitish part of the skin lesion until the skin lesion is peeled off. 2. Physical therapy: Freezing, CO2 laser and microwave can be used to remove the lesions. 3. Surgical excision: Cylindrical or conical excision of the lesion after lidocaine anesthesia, postoperative care to prevent infection. When corns appear, you should seek medical treatment in time, under the guidance of professional doctors, avoid self-medication.