HealthyCanada.com

Canker sores are tiny ulcers that form singly or in clusters on the inside of the mouth. They are very common especially in women. They are not contagious and generally clear up within a couple of weeks.

Exactly what causes canker sores is unknown. Some people especially when they come into contact with some of the causes listed below seem to have frequent problems with mouth ulcers. Researchers have identified a number of possible triggers including:

• Too much stress
• bacterial infection
• vitamin or mineral deficiencies
• food allergies
• minor injuries caused by dentures or damaged teeth
• hot foods
• Certain foods such as pretzels or chips that can damage the oral mucosa
• Certain foods or mouthwashes that upset the acid balance in your mouth

Canker sores are small white or yellow ulcers on the gums and tongue or inside of the lips which can be painful especially when you eat something salty or acidic.

Preventing contact with the triggers outlined above is the first line of therapy. Canker sores usually go away without any treatment. However if they hurt you can ease the pain with acetaminophen or ibuprofen. Other over-the-counter products are available to help stop the sores from becoming irritated although these often only last a short time. Ask your pharmacist to recommend something. If your canker sores don't heal within two weeks if you get them more than a couple of times in a year or if you develop a fever or swollen glands see your doctor.