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 allergies can irritate …

Sinusitis, also known as rhinosinusitis and commonly known as a sinus infection, is an inflammation of the mucous membranes that line the sinuses resulting in symptoms that may include production of …

Apr 17, 2024 · Sinus Infection Basics Key points Stuffy nose that just isn't getting better? You might have a sinus infection, also called sinusitis. You don't need antibiotics for many sinus infections, but …

Aug 29, 2023 · Overview Acute sinusitis causes the spaces inside the nose, known as sinuses, to become inflamed and swollen. Acute sinusitis makes it hard for the sinuses to drain. Mucus builds …

Dec 11, 2025 · Sinus infections and colds have similar symptoms, but a sinus infection generally causes more severe facial pain and pressure than a cold with thicker nasal discharge.

Jun 29, 2025 · Sinusitis (inflamed sinuses) is sometimes caused by an infection, but there are several types (such as chronic or recurrent). Find all the symptoms.

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 …

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

Understanding Chronic Sinus Issues and When to Seek Help If you deal with constant congestion, facial pressure, or headaches that never quite go away, you are not alone. Sinus problems affect millions …