Corns can be removed by general treatment, medication, physical therapy and surgery. 1. General treatment: avoid standing or walking for a long time, reduce foot friction, pay attention to hygiene and avoid infection. 2. Medication: topical application of salicylic acid ointment and other medications as prescribed by the doctor can soften the keratinized skin and help eliminate corns. 3. Physical therapy: the skin of the corns can be trimmed by laser therapy, cryotherapy and other physical methods, which can achieve the effect of removing corns. 4. Surgery: When the symptoms are more serious, surgical excision under local anesthesia is also an option. If there is a need to remove corns, it is recommended to go to a regular hospital in time, under the guidance of the doctor for standardized treatment.