The Asthma Society of Canada
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About Asthma
What Is Asthma?
How to Tell if You Have Asthma
Who Gets Asthma?
Common Asthma Triggers
What to Expect if You Have Asthma
What to Do if Your Asthma Worsens
Treatment
Taking Control
Lifestyle
Resources & Support
About Asthma

Common Asthma Triggers

About Inflammatory Triggers | About Symptom Triggers

Triggers often bring on asthma attacks. A trigger is any thing or condition that causes inflammation in the airways, which then leads to asthma symptoms.

Your personal triggers can be very different from those of another person with asthma. But in every case, it's important to avoid your triggers in order to keep airway inflammation to a minimum and reduce the symptoms.

Inflammatory Triggers
Inflammatory (allergic) triggers can cause inflammation of the lungs' airways or tightening of the airways' muscles. Inflammatory triggers include:

Symptom Triggers
Symptom (non-allergic) triggers generally do not cause inflammation, but they can provoke "twitchy" airways, especially if they're already inflamed. Symptom triggers include:



Do You Have Asthma?

When is a cough more than a cough? What's the relationship between asthma and allergies, asthma and being constantly stuffed up, and asthma and acid reflux? Learn the signs to watch for as well as when to talk to your doctor.

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Asthma Basics Booklet Series

We developed the Asthma Basics Steps to help you learn about good asthma control. Use these booklets to learn more about asthma diagnosis, triggers and medications, as well to guide your discussions with you doctor, pharmacist and asthma educator.

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DISCLAIMER: Content on this website is for information purposes only andnot a substitute for a qualified medical professional.
For specific information treatment and management your asthma and/or potential side effects of medications and
treatment, please consult your physician.