Sinus Infection: What It Feels Like and How to Deal

Medically known as rhinosinusitis, a sinus infection occurs when your nasal cavities become infected, swollen, and inflamed. Sinusitis is usually caused by a virus and often persists even after other Section 1: What is a sinus infection? Before we get to the treatment, it’s important to understand what a sinus infection is. How do you know if you have sinusitis? Read More