Sinus Infection (Sinusitis): Causes, Symptoms Treatment Sinus infections are common and usually not serious They can have many causes, including viruses and bacteria, nasal polyps or allergies You can usually care for yourself at home by resting, taking over-the-counter products and drinking plenty of fluids
Sinusitis - Wikipedia Sinusitis is classified into acute sinusitis, subacute sinusitis and chronic sinusitis In acute sinusitis, symptoms last for less than 4 weeks, and in subacute sinusitis they last between 4 and 12 weeks In chronic sinusitis symptoms must be present for at least 12 weeks [12]
What to do about sinusitis - Harvard Health Sinusitis develops when one or more sinuses become blocked There are millions of bacteria in our noses, and most of the time, they're harmless Even when a few creep into the sinuses, they don't cause trouble, as long as they keep draining into the nose along with mucus
Sinusitis - Johns Hopkins Medicine The sinuses are cavities, or air-filled pockets, that are near the nose passage The sinuses make mucus This fluid cleans the bacteria and other particles out of the air you breathe What causes sinusitis? A sinus infection can happen after a cold The cold inflames the nasal passages
How to Get Rid of a Sinus Infection - Healthline Most sinus infections resolve on their own within 10 days, but here are some things you can do to help get rid of sinusitis and improve your symptoms