Sinusitis is an inflammation of the lining of the sinuses.
Sinuses are air-filled chambers located in the bones behind the cheeks, eyebrows and jaw. They produce mucus, which cleans bacteria and other particles from the air we breathe. Cilia, tiny hairs within the sinuses, move the mucus out through the nose for drainage.
The treatment for sinusitis varies based on the underlying cause.
Sinusitis can occur due to changes in temperature or air pressure, or anything causing sinus or hindering mucus clearance. Contributing factors can include:
When triggered by bacterial or viral infections, sinusitis turns into a sinus infection. Such infections may develop following a cold, where the virus attacks the sinus lining, causing swelling and narrowing. The body's response to produce more mucus, combined with the restricted drainage, creates an environment conducive to bacteria growth, potentially resulting in a sinus infection.
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A/Prof Mark Thong
Senior Consultant