A significant portion of the population is affected by a very common dental problem which is canker sore. Canker sores appears as a small ulcer that occurs inside the mouth which are not contagious and can generally return from time to time. Although the exact cause of canker sore is still left unknown, many medical experts believe that they are caused by the problems concerning the immune system, bacteria, virus in the body and even periodontal disease. In treating canker sores, natural oral care product can help alleviate the painful symptoms and its discomfort, but it takes time to heal on its own. Proper oral hygiene and avoiding the intake of spicy and acidic foods are advantageous in the prevention of canker sore.