A fungal sinus infection, also called fungal sinusitis, is when fungus causes an infection of the sinuses. The sinuses are air-filled cavities in the head that produce mucus (snot), which drains out ...

While most sinus infections clear up on their own, it is important to monitor symptoms, as bacterial infections can sometimes spread to other areas. If a sinus infection lasts longer than 10 days, or ...

A sinus infection, also known as sinusitis, happens when the spaces inside your nose and head (called sinuses) become swollen and filled with mucus. Normally, these are empty and help air flow through ...