Various Types of Canker Sores

Description: Minor canker sores are small sores in the mouth and are often round or oval in shape. They heal on their own within a couple of weeks when not irritated further by salty or spicy foods, vigorous brushing, chewing or orthodontic appliance injuries, or toothpaste containing sodium lauryl sulfate. Over-the-counter numbing agents and salt water mouth rinses are recommended for self-care.

Description: Major canker sores are large ulcerations in the mouth with irregular borders. They are extremely painful and may take months to heal. The most severe sores may require antibiotic mouthwashes, steroid medications, or cauterization with debacterol.

Description: Herpetiform canker sores are clusters of small painful lesions in the mouth that may merge into a large ulcer. This form of canker sore is more common in older individuals. Depending on the extent of the sores, they may go away on their own in a few weeks or be present for several months. Treatment depends on the size and extent as well.