Triggers

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    A trigger is something that causes your airways to narrow, leading to asthma symptoms. Everyone’s asthma is different, and everyone has different triggers. For most people with asthma, triggers are only a problem when their asthma is not well-controlled.

    Note: The underlying problem in asthma is inflammation of the airways, which is present even when you have no symptoms. For this reason, reducing your exposure to triggers will not necessarily help your asthma.

    To improve your asthma and reduce the risk of a severe attack, you need to treat the underlying airway inflammation with medication. This is the best way to reduce asthma symptoms and the risk of needing to go to hospital or dying from asthma. Treatment also reduces the chance that you will get any symptoms in response to something that previously triggered your sensitive airways.

    With appropriate treatment, most people do not need to change their lifestyle or environment just because they have asthma. However, it may be useful for you to identify triggers and reduce your exposure to them if:

    • you have troublesome asthma symptoms despite treatment, and/or
    • you need high doses of medication to keep your asthma symptoms under control

    Cigarette smoke is directly harmful to the airways and makes asthma worse, so exposure to cigarette smoke should be avoided by anyone who has asthma.

    Need more information?

    Contact our Information Line to talk to a trained health expert - call 1800 645 130 or use the online form 

  • Other asthma triggers

    For information on other triggers, choose from the following: 

     air pollution                               heating/air conditioning  
     allergens    hormones: periods, pregnancy, breastfeeding and menopause 
     bush fires   medications 
     chemicals   mould  
     colds and flu   pets  
     depression       pollen  
     diet    sex  
     dust mites   smoking  
     emotions    stress  
     exercise   weather/thunderstorms  
     food   workplace  
     gardens