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 (鼻涕倒流可引起咽喉腫痛，咽喉炎，咳嗽，口臭，聲音嘶啞，有時肺部哮鳴音).
Postnasal drip often improves on its own, but if it lingers it may need treatment with medicines.
如果你硬要把它扯上胃酸,那就看看LPR(LARYNGOPHARYNGEAL REFLUX),但它與鼻涕倒流完全不是一回事:
What these patients are probably suffering from is not related to the nose at all, but is actually related to their stomach. They most likely have Laryngopharyngeal Reflux.
The term LARYNGOPHARYNGEAL REFLUX (LPR) refers to the backflow of stomach contents into the larynx and pharynx (the voice box and throat). LPR can occur during the day or night, and many people who have LPR will not have heartburn; so LPR is sometimes called silent reflux. It is also sometimes called extraesophageal reflux disease (EERD).
