In the case of corns on the feet, only a very small number of early, less symptomatic corns can heal themselves; in most cases, treatment is still required. Corns are cone-shaped corns that are thickened by long-term friction and pressure. They contain a central keratin nucleus, with the tip deep inside the skin and the base exposed on the skin surface. It is usually found on the soles of the feet. It is triggered by prolonged walking, standing, excessive bony prominence and tight shoes, and is often characterized by severe pain when walking or under pressure. When the patient develops this symptom, he should change soft-soled and loose shoes, walk less, and soak his feet in warm water every day to gently scrape off part of the affected area’s cuticle. When the external stimulation disappears, the local blood circulation speeds up, the cuticle gradually falls off and becomes thinner, and the corns may heal themselves. However, this practice takes a longer time and is not effective for larger corns. Therefore, patients with corns are advised to choose medication or laser treatment, and in more severe cases, surgery. Medication includes local application of corns, salicylic acid ointment, etc. Antibiotic ointment can be chosen for those who develop infection, and freezing and laser treatment can also be chosen according to the symptoms, which usually heals in 1-2 weeks. After the timely removal of corns, the painful symptoms can be eliminated soon, so that patients can resume normal life, and the prognosis is generally better. However, if you do not pay attention to daily care, it is also easy to recur.