Sinuses are air-filled sacs (empty spaces) on either side of the nasal cavity that filter and clean the air breathed through the nose and lighten the bones of the skull. There are four paired sinuses ...

The ostia of the maxillary sinus often clog because the ostia are located near the top of the maxillary sinus, thus making proper drainage difficult. Maxillary sinusitis or an infection of the ...

Respiratory infections like the common cold often start with a stuffy nose, and this minor ailment is sometimes followed by pain and tenderness around the cheeks, eyes and forehead — a telltale ...

Pain and pressure around your sinuses -- in your forehead, in your cheeks, behind and between your eyes, and above your nose Tenderness when you touch your face Pain that gets worse when you bend over ...