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 is inflammation of the sinuses—the spaces inside your nose and head. When the sinuses are swollen, they can't drain, causing mucus to build up.

A sinus infection is inflammation of the sinuses — the spaces inside your nose and head. When the sinuses are swollen, they can't drain, causing mucus to build up. "A typical sinus infection is ...

"A sinus infection occurs when the sinuses, air-filled spaces behind the forehead, nose, and cheek, become inflamed and infected. These air-filled pockets get filled up with infected mucus and ...

My sister gets sinus infections all the time, but my mom had migraines at my age. How do I know what I’m dealing with? ANSWER: Nearly everyone experiences a headache at some point, and the pain ...

Maxillary sinus retention cysts (MRCs) are typically asymptomatic and require no treatment. An early 30s man presented with a decade-long history of severe left-sided chronic facial pain (CFP).

A lot of that mucus now doesn't come out. It is stuck inside. It has become thicker. Then, the longer it gets, it turns green, it turns yellow and now its infected you with a bacterial infection ...