What Is Black Hairy Tongue?
10. Can This Condition Return?
For acute cases of black hairy tongue that are caused by a temporary medication, it may be a one-time occurrence that resolves and never returns unless the medication is taken again. Some individuals need to remain on a medication that causes an imbalance of bacteria or yeast so that the issue could recur multiple times.
If oral hygiene is the culprit and no changes are made, the buildup of bacteria or yeast could return multiple times or develop into a more severe case that needs to be treated by a physician. For most people, the condition is temporary and does not cause any harm.
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