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  1. Sinus Infection (Sinusitis): Causes, Symptoms & Treatment

    Mar 9, 2023 · 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 …

  2. Sinus Infection: Symptoms, Causes, and Treatment - Healthline

    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.

  3. How to Tell If You Have a Sinus Infection - University Hospitals

    5 days ago · Sinus infections can cause a range of symptoms – from a stuffy nose to facial pressure. Signs of infection can vary from person to person, but Dr. Rangarajan says the classic symptoms of …

  4. Sinus Infection Basics | Sinus Infection | CDC

    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.

  5. How Long Do Sinus Symptoms Last? When to See a Doctor for a ...

    Feb 17, 2026 · Learn about sinus infection symptoms, typical timelines, and when to seek medical care from the experts at Sleep and Sinus Centers of Georgia.

  6. Sinus Infection (Sinusitis): Symptoms, Causes, Duration, and ...

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

  7. Acute sinusitis - Symptoms and causes - Mayo Clinic

    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 …

  8. Sinus Infection (Sinusitis) – Symptoms and Causes | Penn Medicine

    Most sinus infections are caused by viruses or bacteria. This can happen when the common cold, the flu, COVID-19, allergies, or another illness causes your sinus tissue to swell, leading to a buildup of …

  9. Sinus Infection Symptoms: When to Go to Urgent Care | CityHealth

    5 days ago · Recognize sinus infection symptoms early. Learn the difference from a cold, when to go to urgent care, and treatment options available today.

  10. Symptoms of a Sinus Infection: What You Should Know

    Learn the symptoms of a sinus infection, how to find relief, and when to see a primary care provider to prevent complications.