Acute sinusitis - Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/acute-sinusitis/symptoms-causes/syc-20351671
WebAug 29, 2023 · Acute sinusitis symptoms often include: Thick, yellow or greenish mucus from the nose, known as a runny nose, or down the back of the throat, known as postnasal drip. Blocked or stuffy nose, known as congestion. This …
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