Over time sun damage of the skin can accumulate and red, scaly, sometimes itchy patches can develop. These patches are known as Actinic Keratosis and are most commonly found on sun exposed areas like the face, hands, and arms but can occur anywhere on the body. If not treated these precancerous lesions do have the potential to turn into a skin cancer known as Squamous Cell Carcinoma. Actinic keratosis can be removed with liquid nitrogen in the office are can be treated with a prescription medication.