Treatment for Calluses
A callus is a thick formation of skin commonly found on ball of the foot, heel, sides of the foot. Calluses (and corns) are caused by excessive pressure or friction from prominent bone structures.
The skin simply thickens in response to the weight of your body on these structures combined with stiff or restrictive shoes and your daily activities.
Pain ranges from dull to sharp, depending upon the level of irritation and compression of the nerves around these areas.