Sinusitis causes and symptoms and treatment for sinusitis

Sinuses are air spaces in the human body. When people say: "I have an attack of sinusitis," are usually referring to symptoms in one or more of four pairs of cavities, or sinuses, known as paranasal sinuses. These cavities, located within the skull or bones of the head by the nose, are:
1 Frontal sinuses over the eyes in the brow area
2 Breasts in each cheekbone
3 ethmoid sinuses just behind the bridge of the nose andbetween the eyes

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