Corns are skin diseases caused by long-term local skin extrusion or friction. If the corns are mild and are not subject to external extrusion or friction, they have the possibility of self-healing. If the corns are often subjected to external friction and repeated squeezing, they do not easily heal themselves and can continue to develop, and there is also the possibility of secondary infection, which usually requires some intervention treatment to cure, specific intervention methods, as follows: 1, medication: patients can apply external corns cream, or external salicylic acid ointment, urea ointment under the guidance of a doctor until the corns fall off; 2, surgical treatment: corns can be excavated. Local injection anesthesia is needed, and the doctor will make a circular incision along the edge of the corneal plugs and peel off the corns to dig out the corns, but the disadvantage of this method is that the damage is larger, the recovery is slower, and there is the possibility of scar residue; 3, other: liquid nitrogen freezing treatment, laser treatment, electrocautery, etc. can be used, but also need to follow the doctor’s instructions to choose. After active treatment, corns can usually be cured, but there is a possibility of recurrence. You should avoid triggering factors in your life, minimize foot friction, wear well-fitting shoes, and soak your feet frequently to help prevent the occurrence of corns.