Foot nails are medically known as corns, and treatment includes general treatment, medication, physical therapy and surgery. 1. General treatment: avoid long-term friction and pressure, choose the right shoes, and avoid long-distance walking to prevent aggravation. 2. Medication: 10%-15% salicylic acid ointment, corns and other medicines can be used externally as prescribed by the doctor to soften them and make them fall off. 3. Physical therapy: under the operation of the doctor, liquid nitrogen cryotherapy, laser therapy and other physical methods to get rid of corns. 4. Surgery: If the conservative treatment is ineffective, the corns can also be surgically treated, usually under local anesthesia for corns removal. If the situation of corns, it is recommended to go to the regular hospital in time, under the guidance of the doctor’s treatment, and follow the doctor’s instructions for medication.