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Are Chronic Mouth Sores From Viruses?

Some mouth sores can be associated with viruses such as herpes simplex, and recurring sores can also come from irritation, nutritional deficiencies, or certain medications.

Mouth sores that keep coming back can have more than one cause. Some can be associated with viruses such as herpes simplex, which can stay dormant in the body and reactivate under certain conditions. Recurring sores can also have other causes, including irritation, nutritional deficiencies, certain medications, immune-related conditions, or other underlying health issues, so easing the discomfort alone may not explain why they return. In biological dentistry we look at the pattern, including where the sores appear, how often they return, your oral health, and your overall health history. A mouth sore that lasts longer than two weeks, keeps returning, or looks unusual should be professionally evaluated.

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