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Canker sores an cold sores are not the same thing.

Oral herpes is caused by a contagious virus. Cold sores can cause a lot of discomfort or pain and they affect the out side of the mouth.

Canker sores are caused by bacteria and as far as I know they are not contagious. Canker sores are raise white slightly itchy masses that occuron the inside of the mouth.

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13y ago

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