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 ...

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 ...

to lessen the symptoms or prevent the infection from worsening. Nasal irrigation is the cleansing of the nasal cavity with sterile salt water to flush out excess mucus or debris from the sinuses and ...

For some people, the classic symptoms of a sinus infection, including nasal congestion and discharge, are also accompanied by ...

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 ...