Canker sores are mouth ulcers which are an open sore found in the mucus membrane skins inside the lips, cheeks, on the roof of the mouth, and on the underside of the tongue.  These painful sores can also be found on the soft palate and the tonsil areas.  There are many causes for canker sores in the mouth, and most are preventable.

An injury such as biting the inside of the cheek can turn into a painful canker sore.  An immune system that attacks healthy cells in the mouth instead of viruses and bacteria can also cause these types of mouth ulcers.  If you are deficient in vitamins or minerals such as zinc, folic acid, iron or B12 you may develop canker sores.

Food allergies or certain foods which are highly acidic can cause canker sores in the mouth.  These include:

* Chocolate
* Acidic foods, oranges or pineapple
* Strawberries
* Eggs
* Cheese
* Nuts
* Coffee  Read more...