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Post-nasal drip occurs when mucus from the nasal passages and sinuses drains into the throat. If the mucus becomes thick, post-nasal drip can cause problems such as a sore throat, laryngitis, a cough, bad breath, hoarseness, and sometimes wheezing.
A problem caused by post-nasal drip often improves on its own, but if it lingers, it may need treatment with medicines.
Current as of: March 1, 2023
Author: Healthwise Staff
Medical Review:Adam Husney MD - Family Medicine & Patrice Burgess MD - Family Medicine & Anne C. Poinier MD - Internal Medicine & Kathleen Romito MD - Family Medicine & Donald R. Mintz MD - Otolaryngology & Martin J. Gabica MD - Family Medicine
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