Gargle with a mouth wash 3-4 times daily to get relief.
Gargle with warm water with salt may help.
Gargle with water with potassium chlorate (1 a teaspoon of in a cup of water). Do not swallow.
Apply a wet, black tea bag to the canker sores. The tannin in the black tea may help to get rid off the sores..
Apply glycerine on the sores.
Gargle with water containing hydrogen peroxide (1 tablespoon in a glass of water).
Swish milk of magnesia in your mouth.
Eat yogurt each day. Yogurt contains lactobacillus acidophilus that are believed to cure canker sores.
Apply vitamin E oil from a capsule onto your canker sore. Repeat several times a day.
Broken teeth, rough or broken fillings, or teeth with excessively sharp edges should be treated.
Do not use hard toothbrush with irregular bristles. Brush your teeth gently.
Use toothpaste and mouthwash that do not contain sodium lauryl sulfate or alcohol.
Take multi-vitamin supplements to eliminate nutritional deficiency
Avoid acidic drinks such as citrus juices, alcohol, chocolate, nuts and spicy foods.