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Postnasal drip occurs when mucus from the nasal passages and sinuses drains into the throat. Postnasal drip can cause a sore throat, laryngitis, a cough, bad breath, hoarseness, and sometimes wheezing.
Postnasal drip often improves on its own, but if it lingers it may need treatment with medicines.
Primary Medical Reviewer
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & David Messenger, MD
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