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

    Mar 9, 2023 · Sinus Infection (Sinusitis) Medically Reviewed. Last updated on 03/09/2023. Sinusitis is an inflammation of the tissues in your sinuses (spaces in your forehead, cheeks and nose usually filled …

  2. Sinusitis - Wikipedia

    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 …

  3. Sinusitis - Johns Hopkins Medicine

    Detailed information on sinusitis, including causes, symptoms, diagnosis, and treatment.

  4. Sinusitis - Harvard Health

    Apr 12, 2023 · Millions of Americans get sinusitis each year. The key to a quick recovery is proper drainage, which is best achieved by staying hydrated, inhaling steam several times daily, taking …

  5. Sinusitis: Symptoms, Risk Factors, Treatment, and More

    Jan 24, 2025 · Sinusitis occurs when your nasal passages become inflamed. Discover risk factors (such as sinus infections), symptoms, treatment, and more.

  6. Sinus Infection | Sinusitis | Sinus infection ... - MedlinePlus

    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.

  7. Sinusitis: Symptoms, causes, and treatment - Medical News Today

    Jul 11, 2025 · Sinusitis is an inflammation of the sinuses, the passages that lead to the nose. Home remedies can often resolve it, but some people may need medical treatment.

  8. Sinusitis - ENT Health

    Sinusitis, also called rhinosinusitis because the symptoms involve both the nose and the sinuses, affects about one in eight adults annually.

  9. Sinusitis (sinus infection) - NHS

    Find out about sinusitis (sinus pain), including the symptoms and treatments and when to get medical help.

  10. Chronic sinusitis - Symptoms and causes - Mayo Clinic

    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 hard to …