Sinusitis (sinus infection)
Click on the name of the infection in the image above to find out more about the symptoms, diagnosis and treatment of these respiratory tract infections.
What is sinusitis?
Sinusitis is an infection of the sinuses, the small air-filled spaces in the bones behind the forehead, around the nose and eyes, and under the cheeks. The sinus cavities are lined with membranes that produce mucus.