Sinus Infection (Sinusitis): What It Is, Symptoms, and More

 Here are Sinus Infection (Sinusitis): What It Is, Symptoms, and More

A sinus infection, medically known as sinusitis or rhinosinusitis, occurs when your nasal cavities become infected, swollen, and inflamed.

 Fluid buildup in the sinuses can cause germs to grow, leading to a sinus infection.

Acute sinusitis. This type of sinus infection lasts only for a short time, defined by the American Academy of Otolaryngology as less than 4 weeks.

 This short-term infection is usually part of a cold or other respiratory illness. It may also be caused by a bacterial infection (acute bacterial sinusitis).

Subacute sinusitis. A subacute sinus infection lasts between 4 and 12 weeksTrusted Source.

Recurrent acute sinusitis. An acute sinus infection is considered recurrent if the infection returns four or more times within a year, with each infection lasting 7 days or more.

Chronic sinusitis. Chronic sinus infections last for more than 12 weeks or continue to recur.

Sinusitis symptoms often resemble those of a cold. The main criteria for viral sinusitis include: facial pain or pressure infected nasal discharge.

Facial pain is a common symptom of sinusitis. You have several different sinuses above and below your eyes, as well as behind your nose.

 Any of these air-filled cavities can hurt when you have a sinus infection.

Persistent pressure and swelling in your sinuses can give you symptoms of a headache.

Sinus pain can also cause earaches and pain in your teeth, jaws, and cheeks.

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