KEY POINTS Chronic rhinosinusitis refers to symptomatic inflammation of the nose and paranasal sinuses that has been present ...

Treatment may depend on the cause. A sinus infection, also known as sinusitis or rhinosinusitis, occurs when your nasal cavities become swollen and inflamed. Fluid buildup in the sinuses can allow ...

A sinus infection, or sinusitis, is inflammation of the cavities around your nasal passages. Symptoms of a viral or bacterial sinus infection include congestion, facial pain or pressure ...

Sinusitis, or a sinus infection, can cause a stuffy or runny nose, a decreased sense of smell, and other symptoms. You can usually manage the symptoms at home with a decongestant. The sinuses are ...

Bacterial sinusitis can also develop when the nasal cavity and sinuses initially become inflamed due to a viral infection. When the fluid builds up in the sinuses, bacteria can grow, causing a ...