[header] How to treat a corn or callus [title] Differentiate between a corn and a callus. [step] Corns and calluses are not the same thing, therefore the treatment approaches are different. [substeps] A corn can develop between the toes, has a core, and can be quite painful. 
Corns also develop along the tops of the toes, most often located just above a joint in the toe. Corns are categorized as hard, soft, or periungual.