Corns are a thickening on the skin between the toes and can be painful, according to MedicineNet. A common symptom is pain and tenderness near the area. Corns can be painful regardless of the size.
Other symptoms of corns are a hard patch of skin between the toes, a bump on the skin, or dry and flaky skin. Common locations for corns are on the outside of the fifth toe and between the fourth and fifth toe, states MedicineNet. Treatments include products containing medication to reduce the thickness of the skin, products containing salicylic acid, and antibiotics if the corn develops an infection.