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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.
ByHealthwise Staff Primary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine Specialist Medical ReviewerDavid Messenger, MD
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & David Messenger, MD