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What are triggers?

Identifying and avoiding triggers is an important part of asthma management. A trigger is something that irritates your airways, and makes your symptoms worse. Some common ones are shown above, but everyone is different, so these may not be triggers for you.1,2

Making a note of when you get the most symptoms can help you work out what your triggers are.

Once you know what they are, you might be able to avoid them, or take steps to reduce their impact. Talk to your doctor or nurse about how to do that.

Common triggers of an attack:1-4

House dust mites
Animal allergens
Cold air
Colds and infections

Approval code: RESP-IE-NP-00095

Date of preparation: November 2020

  1. British Lung Foundation. Asthma information leaflet. Available at: Last accessed: November 2020.
  2. Live well with asthma. Asthma UK. Available at: Last accessed: November 2020.
  3. BTS SIGN. British Guideline on the management of asthma. 2019. Available Last accessed: November 2020.
  4. Asthma and alcohol. Asthma UK. Available at: Last accessed: November 2020.

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