Long calluses on the feet because of friction, stimulation, so that the local corneal layer stimulation, thickening the formation of protective tissue, after the emergence of the calluses can choose to first use a file to thicken the calluses polished thin or become smooth, and then wear more loose, breathable shoes, reduce the time of long-term walking, can make the callus parts gradually recover. You can also choose to use topical ointment for treatment, it is recommended to choose to use compound lactic acid cream, the cream has a relatively strong corrosive, applied to the callus parts can make the callus soften, after its own metabolism softened callus will gradually fall off, and eventually return to normal conditions. You can choose to use salicylic acid cream instead, the effect is relatively good, you can also use laser, freezing and other ways to get rid of, but the trauma is relatively large, not recommended.