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When does sinusitis occur?

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Sinusitis usually happens after you've had a cold or allergies. But certain symptoms will keep going, even after your cold goes away. You'll probably have a stuffy nose and cough for more than a week or two.

You may hear your doctor talk about two kinds of sinusitis: "acute" and "chronic." There's a simple way to tell them apart. If your symptoms last less than 4 weeks, it's acute. If they go on for 3 months or longer, you have chronic sinusitis.

From: Is It Sinusitis or Allergies? WebMD Medical Reference

SOURCES:

American Academy of Allergy, Asthma & Immunology: "Colds, Allergies and Sinusitis -- How to Tell the Difference," "Allergy Shots (Immunotherapy)."

American College of Allergy, Asthma & Immunology: "Sinus Information," "Allergy Medication," "Allergy Medication," "Seasonal Allergies."

Bela B. Faltay, MD, Akron General Health System.

Reviewed by Sabrina Felson on March 21, 2018

SOURCES:

American Academy of Allergy, Asthma & Immunology: "Colds, Allergies and Sinusitis -- How to Tell the Difference," "Allergy Shots (Immunotherapy)."

American College of Allergy, Asthma & Immunology: "Sinus Information," "Allergy Medication," "Allergy Medication," "Seasonal Allergies."

Bela B. Faltay, MD, Akron General Health System.

Reviewed by Sabrina Felson on March 21, 2018

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