Sinus Infection Sinusitis Symptoms Causes Duration 1 apr 2021 rhinosinusitis is a mucosal inflammation of both the paranasal sinuses and adjacent nasal cavities. viral infections are the most common . See full list on mayoclinic. org. By stopping a sinus infection early, you avoid later symptoms and complications. what is sinusitis? sinusitis is an inflammation of the sinuses. it is often caused by . Sinusitis can stem from various factors, but it always results from fluid becoming trapped in the sinuses, allowing germs to grow.. the most common cause english sinusitis is a virus, but a bacterial infection can. Sinusitis Animation Youtube English sinusitis (sinus inflammation, sinus infection, blocked or painful sinuses), blocked or runny nose, sore. more_vert. open_in_new link to source. Sinusitis, also known as rhinosinusitis, is inflammation of the mucous membranes that line the sinuses resulting in symptoms that may include thick nasal mucus, a plugged nose, and facial pain. ...