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What is chronic sinusitis?

By Dr. Inell Rosario, MD

Chronic sinusitis is inflammation of the lining of the sinus cavities for three months or longer. The sinuses are paired, air-filled cavities that are surrounded by the eyes, brain, maxilla and upper teeth, and back of throat. Names of the paranasal sinuses are the frontal, ethmoid, maxillary and sphenoid sinuses. Their natural drainage pattern is aided by tiny cilia that beat secretions to the back of the throat. When the sinuses are infected, they can cause headaches, eye and teeth pain or pressure and nasal congestion. Sinus infections can be caused by viruses or bacteria and are exacerbated by allergies, foreign bodies, or structural abnormalities.  

Why should I care about sinusitis? Sinusitis is very common, and in any year most people will suffer from at least one episode of acute infection. An acute sinus infection lasts less than three months but otherwise has the same symptoms and causes as a chronic sinus infection but responds to therapy or spontaneously resolves. Continue Reading →

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