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What is sinusitis?

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While there are many sinuses in the body, the term is often used to refer to the paranasal sinuses. These are a group of four hollow cavities in your face, near the cheeks and eyes. They're connected to the nasal passageways and help warm up, moisten and filter the air you breathe in. Sinusitis is the swelling or infection of these sinuses.

From: Sinus Infections and Asthma WebMD Medical Reference

SOURCES: American Academy of Allergy, Asthma & Immunology: "Tips to Remember: Sinusitis" and "Sinusitis." American Academy of Family Physicians: "Impact of Chronic Sinusitis on Patients with Asthma." Asthma and Allergy Foundation of America: "Rhinitis and Sinusitis" and "Sinus Problems." Dixon A.E. et al, August 2006.  Slavin R.G. , 2005.




Chest,ACP Medicine

Reviewed by Louise Chang on July 05, 2018

SOURCES: American Academy of Allergy, Asthma & Immunology: "Tips to Remember: Sinusitis" and "Sinusitis." American Academy of Family Physicians: "Impact of Chronic Sinusitis on Patients with Asthma." Asthma and Allergy Foundation of America: "Rhinitis and Sinusitis" and "Sinus Problems." Dixon A.E. et al, August 2006.  Slavin R.G. , 2005.




Chest,ACP Medicine

Reviewed by Louise Chang on July 05, 2018

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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