Sinusitis

Sinusitis is an inflammation of the mucous membranes that line the paranasal sinuses - the four pairs of air-containing cavities within the bones of the face. This common condition can affect people of all ages, causing symptoms of headache, nasal congestion and tenderness over the infected area.

In this section, you'll find more information on the causes and symptoms of sinusitis, along with details on how it may be diagnosed and treated.