Scholl Callus Molespuma Shield Patches Templates. DESCRIPTION Corns are a hyperkeratinization localized, with a denser core top and sides of the toes (often in joints), very painful if pressed nerve endings. They originate from improper footwear, by rubbing and sustained pressure in areas that do not support the body weight. Skin redness appears, with stinging and itching. If the friction persists, hardness is formed that eventually becomes in a callus. The best way to prevent the occurrence of the callus is to eliminate the cause of the pressure or friction, and it is therefore necessary to use comfortable and appropriate footwear. LATEX ALLERGY This product contains latex.