Learning About Asthma Triggers

Asthma triggers: Overview

When you have asthma, certain things can make your symptoms worse. These are called triggers. Common triggers include colds, smoke, air pollution, dust, pollen, mold, pets with fur, cockroaches, stress, cold and dry air, and things you are allergic to.

Learning what triggers your asthma is one way to help manage it. Then you may be able to avoid the things that trigger your symptoms. Share these triggers with your doctor. The doctor may have other ideas that can help.

Here are some ways to avoid a few common triggers.

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  Wash your hands often. This can help you avoid getting sick.

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  Don't smoke or vape or let anyone smoke or vape around you. If you need help quitting or cutting back, talk to your doctor.

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  Try to stay inside when air pollution and pollen levels are high. Close the windows and use an air conditioner or air filter, if you can.

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  Avoid indoor triggers. Open the windows when the air inside is smoky or if it's smelly from cleaning products.

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  Get the recommended vaccines. These include an annual flu shot and staying up to date with COVID-19 vaccines. Ask your doctor about pneumonia and respiratory syncytial virus (RSV) vaccines.

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  Talk with your doctor. Asthma management is a partnership. Your doctor can help.