We designed Dr. Scholl’s® Corn Removers with Hydrogel technology specifically for people who have corns on their feet and want a discreet way of removing them. Why it Works:. • A corn is caused by the buildup of hard, dead skin over an area of pressure. Corns on the feet are often caused by friction and pressure from footwear as well as abnormal patterns of walking or repetitive activities (such as in sports). • Dr. Scholl’s® Corn Removers with Hydrogel technology provides corn treatment and cushioning protection against shoe pressure and friction to relieve pain.