Sandal season is here! And with it sometimes comes the unwelcome reveal of dry, rough patches on our hands and feet – otherwise known as calluses. These thickened areas of skin, while a natural ...

Medically reviewed by Marisa Garshick, MD Key Takeaways A callus is a hard and thick patch of skin caused by friction or pressure, often on hands or feet.Calluses can be treated with salicylic acid, a ...