How to remove the hard cocoon with what medicine?

The sole skin is subject to long-term friction or extrusion, easy to cause cuticle hyperplasia, resulting in flat localized keratinous hyperplasia damage, this callus is also called callus. Should wear the right size soft shoes, has reduced friction and extrusion, patients can be external corns cream, but should protect the surrounding normal skin, can also be surgically removed, but the damage is relatively large, generally do not take surgical therapy. Callus has a certain protective effect, generally do not need treatment, if can reduce friction more can heal, thicker skin lesions can be soaked in hot water first, and then eliminate with a knife, can also be topical vitamin A acid cream, 5%~10% salicylic acid ointment or 30% salicylic acid collodion removal.