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A member asked:
How are cold sores (herpes simplex) and canker sores different?
A doctor has provided 1 answer
Cold vs Canker sores: Canker sores (aphthous ulcers) are painful sores inside the mouth. No one knows what causes canker sores. Herpes simplex virus (HSV-1) typically causes cold sores. Cold sore blisters can occur in many different parts of the body but are most common on or around the lips and cheeks.
Answered 12/22/2014
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