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Unusual Asthma Symptoms

(continued)

Health Conditions That May Worsen Asthma continued...

For more information, see WebMD's article on Allergies and Asthma.

Sinusitis and Asthma

Over the years, doctors have noted an association between asthma and sinusitis. In fact, 15% of patients with sinusitis also have asthma (as opposed to 5% of the normal population). An astounding 75% of severely asthmatic patients also have sinusitis. Additionally, asthmatic patients often report that their symptoms worsen when they develop sinusitis. Conversely, when the sinusitis is treated, the asthma improves.

The reasons behind the association of asthma and sinusitis 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 results in bronchitis (sinobronchitis). This can worsen asthma.

For in-depth information, see WebMD's Sinusitis and Asthma.

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WebMD Medical Reference

Reviewed by David T. Derrer, MD on May 23, 2014
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