When the feet are subjected to friction and pressure, the skin in this area becomes tough and causes corns and calluses. Rubbing of the shoe on skin causes hard corn on the upper part of the toe. When you have corns and calluses, you will have pain while walking. When the shoe touches the corn, it worsens the pain. Calluses usually form on heel or ball of the feet. It causes burning and tenderness in the affected area. If you wear ill-fitting, inflexible and porous shoes, it causes corns and calluses. Home remedies can help in curing this problem. You should keep the toenails trimmed. 25 effective home remedies for corns and calluses are as follows.