Sinusitis is an inflammation, or swelling, of the tissue lining your sinuses. Sinuses are structures inside your face that are normally filled with air. Bacterial infections, viral infections and …

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.

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.

Jul 17, 2024 · Discover effective strategies to relieve a sinus headache. Learn about home remedies and treatments that relieve sinus pressure and reduce sinus inflammation.

Nov 22, 2025 · Sinusitis, also known as a sinus infection, can cause symptoms such as facial pain, congestion, and headache.

An infection, growths in the sinuses, called nasal polyps, or swelling of the lining of the sinuses can cause chronic sinusitis. Symptoms might include a blocked or stuffy nose that makes it …

Dec 11, 2025 · Sinus infection (sinusitis) is inflammation of the air cavities behind the nose and eyes. Reviewed by a board-certified infectious disease practitioner.

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.

2 days ago · Chronic sinus congestion can stem from structural issues, infection, or polyps beyond allergies; understanding sinusitis symptoms and blocked nose causes improves …

Sep 30, 2025 · Sinus infections (sinusitis) cause swelling of the sinus lining and can lead to congestion, pain, and nasal discharge. Sinus infections can be bacterial or viral, with treatment …