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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 …

  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. Sinus infection: 11 symptoms and treatments - Medical News …

    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.

  4. Chronic sinusitis - Symptoms and causes - Mayo Clinic

    Read about possible causes of lasting sinus troubles, treatments and how to prevent these problems.

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

    Nov 5, 2023 · Sinusitis, also known as a sinus infection, can cause symptoms such as facial pain, congestion, and headache. Learn about the causes, duration, and treatment options for …

  6. Sinus Infection (Sinusitis): 18 Signs, Symptoms, Causes, …

    Sinus infection is inflammation and/or infection of the sinuses. Signs and symptoms of sinus infections include nasal congestion, facial pain and swelling, sinus headache, fever, and cough.

  7. 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.

  8. Sinusitis - Ear, Nose, and Throat Disorders - MSD Manuals

    Maxillary sinusitis causes pain over the cheeks just below the eyes, toothache, and headache. Frontal sinusitis causes headache over the forehead.

  9. Sinus Infection - Rhinosinusitis | Ohio State Medical Center

    What is a sinus infection, or rhinosinusitis? Sometimes referred to as just sinusitis, health care providers generally prefer the term rhinosinusitis (with “rhino” meaning nose), as the condition …

  10. Sinus Infections and What Causes Them - Verywell Health

    Apr 6, 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.