Cold sores, caused by the herpes simplex virus, typically appear outside the mouth on the lips or around the nose and are highly contagious. In contrast, canker sores are confined to the inside of ...
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Ulcers and sores? Your mouth may be trying to warn you about lurking internal diseasesViruses can also lead to the formation of dots and sores inside the mouth. Herpes simplex virus can produce cold sores. Foot and mouth disease– commonly seen in children – can also lead to ...
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