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How is sinusitis and asthma related?

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People who have sinusitis are three times more likely than others to also have asthma. And ¾ of those with asthma have sinusitis. Reasons for the link include:

  • Sinusitis may activate a "sinobronchial reflex" and worsen asthma.
  • The infected mucus from the sinuses may drain into the bronchial tubes and cause inflammation that leads to bronchitis (sinobronchitis). This can worsen asthma.

SOURCES: American Academy of Allergy, Asthma & Immunology: "Tips to Remember: Asthma Triggers and Management" and "Asthma and GERD."

Reviewed by Nayana Ambardekar on May 12, 2018

SOURCES: American Academy of Allergy, Asthma & Immunology: "Tips to Remember: Asthma Triggers and Management" and "Asthma and GERD."

Reviewed by Nayana Ambardekar on May 12, 2018

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