Frontal sinusitis refers to inflammation of the sinuses located just above the eyes and on the forehead. A common cause of the condition is infection, but other causes include allergies and nasal ...

There are 4 sets of sinuses ordinarily present in humans, but congenital absence or hypoplasia of one or more sinus cavities is not uncommon. The maxillary and ethmoidal sinuses form during the third ...

With chronic sinusitis, the tissues inside your sinuses become inflamed and blocked for a long period of time due to swelling and mucus buildup. Acute sinusitis only happens for a short time (usually ...

Facial pressure, postnasal drip, and congestion are common signs of sinus inflammation, also known as sinusitis. When symptoms persist for up to 12 weeks, sinusitis shifts from being acute to what’s ...

A sinus infection occurs when the mucous membranes lining your sinuses (air-filled cavities in your face and head) become infected, usually with a virus but also sometimes bacteria or fungi. This ...