Are Sinus Infections Contagious? Here's What 3 MDs Have to Say
A sinus infection, also known as sinusitis, occurs when the air cavities around your nasal passages become inflamed and ...
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Signs and Symptoms of a Sinus Infection (Sinusitis)
Medically reviewed by Jane Kim, MD A sinus infection, or sinusitis, is inflammation of the cavities around your nasal passages. Symptoms of a viral or bacterial sinus infection include congestion, ...