Phlegm or Mucus in Throat: Causes, Treatment, and More - Healthline
https://www.healthline.com/health/overproduction-of-mucus-in-throat
WebJan 7, 2020 · asthma. infections, such as the common cold. lung diseases, such as chronic bronchitis, pneumonia, cystic fibrosis, and COPD (chronic obstructive …
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