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1. www.webmd.com › allergies › postnasal-dripWhat Is Postnasal Drip: Sore Throat From Sinus Drainage - WebMD

   www.webmd.com › allergies › postnasal-drip

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   2024年2月26日 · What Is Postnasal Drip? Postnasal drip is the drainage of mucus from your nose or sinuses into your pharynx, or throat. Every day, glands in the linings of your nose, throat, airways, stomach,...