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 …

Jan 28, 2025 · A sinus infection occurs when your nasal cavities become swollen, infected, or inflamed. Learn about the symptoms and how to treat them.

Nov 22, 2025 · Acute sinusitis is typically caused by the common cold, a viral infection. You should feel better within 10 days, though symptoms could stick around as long as 4 weeks. …

Aug 29, 2023 · Learn the latest ways to treat and prevent the stuffy nose and head pain that can come with this condition.

Jul 16, 2025 · Sinus infections, or sinusitis, occur when a virus of bacteria enters the sinuses. Read on for a list of common symptoms and treatments.

Apr 17, 2024 · When you have a sinus infection, one or more of your sinuses becomes inflamed. Fluid builds up, which can cause congestion and runny nose.

Apr 6, 2025 · An acute or subacute sinus infection starts with inflammation of the nasal passages, which can occur due to an irritant, allergy, or infection, such as the common cold. 6 The …

Nasal and sinus passages become swollen, congested, and inflamed in an attempt to flush out offending inhaled particles that trigger allergies. Pollen are seasonal allergens. Molds, dust …

Sep 30, 2025 · A sinus infection can develop whenever this process is interrupted through mucus buildup or swelling. This article explains more about what types of sinus infections can occur, …

People who have had sinus surgery, but still have sinusitis, may also be referred. Decongestants and antihistamines do not seem to help the symptoms of sinusitis.