What is Sinus Infection
Sinusitis . Medically known as rhinosinusitis, a sinus infection occurs when your nasal cavities become infected , swollen, and inflamed. Sinusitis is usually caused by a virus and often persists even after other upper respiratory symptoms are gone. In some cases, bacteria, or rarely fungus, may cause a sinus infection . Sinusitis Medically known as rhinosinusitis, a sinus infection occurs when your nasal cavities become infected, swollen, and inflamed. Sinusitis is usually caused by a virus and often persists even after other upper respiratory symptoms are gone. In some cases, bacteria, or rarely fungus, may cause a sinus infection. Other conditions such as allergies , nasal polyps , and tooth infections can also contribute to sinus pain and symptoms.. TYPES Chronic vs. acute Acute sinusitis only lasts for a short time, defined by the American Academy of Otolaryngology as less than four wee...
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