Both corns and calluses are thickening of the cuticle induced by long-term pressure and friction. Corns: They are more common in adults and more common in women. They often occur in the middle of the front of the plantar area, on the lateral side of the little toe or on the medial edge of the bunion, and can also be seen on the back of the toe and the heel. The lesion is a well-defined yellowish or dark yellow cone-shaped corneal plugs, the tip of which is embedded in the skin, such as the size of a soybean, with a smooth surface, flat or slightly elevated with the skin surface. Because the tip of the corneal plugs presses the peripheral nerves in the dermis, the pain is severe when standing or walking. Callus: yellow or waxy yellow thickened keratinous plaques, flat or slightly elevated, with a thicker central edge and thin, firm texture, indistinct borders, smooth surface and clear skin lines, mostly occurring at the palm and plantar areas under pressure and friction. Local sweat secretion is reduced, dull sensation, mostly no conscious symptoms, severe cases can be painful. So, when you have corns and calluses, do you go to a pedicurist? No! No! First of all, we should remove the cause, try to avoid friction and extrusion, wear suitable shoes, and correct the foot if it has deformities as soon as possible. At the same time, combined with drug treatment: corns: can be used externally corns cream, 50% salicylic acid ointment, but should protect the surrounding normal skin, but also the corns can be surgically removed; in addition, freezing laser and other methods can be used appropriately. And callus: has a certain protective effect, generally do not need to treat, if you can reduce friction more can be relieved; thicker lesions can be soaked in hot water and then removed with a knife, can also be used externally keratin exfoliator such as sulfosalicylic acid ointment, vitamin A acid ointment.