Post-nasal drip (PND) occurs when excessive mucus is produced by the sinuses. The excess mucus accumulates in the throat or back of the nose. It can be caused by rhinitis, sinusitis, or laryngopharyngeal acid reflux. It can be enhanced or sometimes even caused by allergies, whether in spring, fall or early summer.
PND is sometimes referred to as "upper airway persistent cough syndrome."
Treatment may include antibiotics, nasal irrigation, Jala neti, or minor surgery.
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