Sinus Infection (Sinusitis): Causes, Symptoms Treatment Sinuses are structures inside your face that are normally filled with air Bacterial infections, viral infections and allergies can irritate them, causing them to get blocked and filled with fluid This can cause pressure and pain in your face, nasal congestion (a stuffy nose) and other symptoms
What’s causing your sinus trouble? - Mayo Clinic Press Your sinuses are four pairs of air-filled interconnected cavities located between your eyes and nose What goes on inside them — a microscopic battle between infection- and inflammation-causing antigens and the body’s defense forces — can have a serious impact on your health and comfort
Sinus Infection: Symptoms, Causes, and Treatment - Healthline Fluid buildup in the sinuses can allow germs to grow, leading to a sinus infection Sinusitis is usually caused by a virus and often lasts even after other upper respiratory symptoms are gone
Sinus (anatomy) - Wikipedia In common usage, "sinus" usually refers to the paranasal sinuses, which are air cavities in the cranial bones, especially those near the nose and connecting to it
What Do Sinuses Do? Their Functions Explained - ScienceInsights The sinuses are defined as four pairs of symmetrical, air-filled spaces situated around the nasal cavity They are named for the facial bones in which they are located, and each pair is lined with a continuous mucous membrane that also covers the nasal passages
What to do about sinusitis - Harvard Health Sinusitis occurs when blocked sinuses cannot drain and the backed-up mucus gets infected The simplest and often most effective treatment is daily nasal irrigation It can also help to drink a lot of water, inhale steam, and sleep with the head elevated
Sinusitis (sinus infection) - NHS The sinuses are small, empty spaces behind your cheekbones and forehead that connect to the inside of the nose Sinusitis causes the lining of the sinuses to swell up This stops mucus draining into your nose and throat properly, making you feel blocked up