Corns form on the feet. Like calluses, corns are caused by the accumulation of special epidermal cells called keratinocytes. These cells accumulate in response to pressure or friction, usually over a bony prominence, like toe joints.

There are two types of corns: Soft corns (corns that form between the toes) and hard corns caused by wearing tight fitting shoes.

Calluses are areas of skin that thicken in response to repeated pressure and friction from repeated rubbing. They are the body's way of protecting the skin and the structures beneath it from injury. Calluses can form on the skin of any part of the body that is exposed to excessive pressure or friction. It is common for calluses to form over a bony spot, such as the toes, fingers or elbows. Painful calluses typically occur on the sole of the foot, on the heel or under the five metatarsal heads (i.e., the area where the long inner bones of the toes extend into the foot). These areas typically bear most of the pressure and friction from standing and walking. As the callus thickens, it causes more pressure against the skin inside the shoe, causing pain.

A blister is a small pocket of fluid within the upper layers of the skin. Repetitive shoe friction can create blisters that are painful and may become infected.

Dr. Scholl's® provides a wide variety of solutions to help relieve the pain from corns, calluses and blisters.

Corns, Calluses & Blisters