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 …

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.

Apr 17, 2024 · 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 your healthcare provider can …

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

Aug 29, 2023 · 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 up. Acute …

Jul 17, 2024 · Sinuses are prone to inflammation, known as sinusitis, which may lead to the common symptoms of pressure and pain. The most common cause of sinusitis is a viral infection, but both …

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.

Sinusitis is one of the most common medical conditions. Sinusitis may occur in any of the four groups of sinuses: maxillary, ethmoid, frontal, or sphenoid. Sinusitis nearly always occurs in conjunction with …

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.