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Factsheet - Asthma - Trigger Factors


Asthma Trigger Factors

Disclaimer: This fact sheet is for education purposes only. Please consult with your doctor or other health professional to make sure this information is right for your child.

Children with asthma have sensitive or twitchy airways. When exposed to particular factors their airways react and asthma symptoms develop. These factors are called asthma triggers. Asthma triggers may not be the same for each child and some children may have more than one trigger factor. Keeping a diary of your child's activities and when symptoms occur may help in identifying their triggers. If you know what your child's asthma triggers are, take steps to manage them. The most common triggers and current suggestions for minimising these are listed in the table below.

Asthma Trigger Strategies
Cold & Flu
Cold & Flu

Colds and flu frequently trigger asthma; these are difficult triggers to avoid. Use your child's asthma action plan if they develop a cold or flu.

Smoking
Smoking

Make your car and home smoke free; ask people who smoke to go outside. Opening windows and doors will not protect your child from tobacco smoke.

Avoid taking your child to smoky places and women should not smoke when pregnant or breastfeeding.

Exercise/Play
Exercise/Play

Exercise and play are healthy activities and should not be avoided.

If exercise is a trigger, give your child their blue reliever medication 5-10 minutes prior to exercise or play. Talk to your child's doctor if asthma symptoms persist.

Start with warm up exercises and finish with cool down exercises.

Changes in air temperature
Changes in air temperature

Be aware of changes in air temperature. If symptoms are experienced regularly visit your child's doctor.

Emotions

Anxiety, stress, distress and laughing can be a trigger. Provide reassurance and relaxation for your child.

Some foods and food additives
Some foods and food additivies

Encourage a healthy balanced diet. Only avoid those foods your child is known to be allergic to. Seek a detailed assessment from an allergy specialist.

Food additives that may trigger asthma include metabisulfite/sulphur dioxide (220-228), tartrazine (102) monosodium glutamate (621).

Certain Medications
Certain Medications

The following medications are examples of potential triggers; Aspirin and other non-steroidal anti-inflammatory drugs (ibuprofen, nurofen) including natural treatments such as Echinacea and royal jelly.

Please speak to your child's doctor.

Asthma Trigger Minimisation Strategies
Allergens - including dust mites, dust, moulds, animals (cats & dogs) & pollens  
Dust Mites
Dust Mites
More information on House Dust Mites:
House dust mite allergy-what should you do?
www.chw.edu.au
www.sch.edu.au

Use a dust mite resistant cover, for mattresses, pillows and quilts (available from pharmacies).

Washing of soft toys, furnishings, covers, sheets, and pillowcases at usual washing temperatures removes more than 95% of allergens but as this does not kill dust mites, these items should be washed every 8 weeks. Avoid use of sheepskin or woollen underlays. Use feather bedding.

Regular vacuuming of carpets and soft furnishings may help to reduce dust mite allergens (The child should avoid re-entering the room for approx 20 mins following).

Having non-carpeted flooring, reducing soft furnishing such as curtains, soft toys and sheepskins reduce the amount house dust mite allergen.

Reduce clutter from the bed and bedroom, removing soft toys.

Dust
Dust

Wipe hard surfaces (inc hard floors) with a damp or an electrostatic cloth weekly.

Mould
Mould

Reduce humidity by having a dry, well-ventilated house with adequate natural insulation. Dehumidifiers are not recommended.

Remove visible mould. Clean fridge drip trays regularly.

Keep air conditioning units clean.

Remove indoor plants/garden mulch and compost.

Animals (cats & dogs)
Animals (cats & dogs)

Where possible keep pets out of the house. If not possible keep pets out of the bedroom and living areas.

Wash pets weekly.

Weekly vacuum of carpets.

Pollens
Pollens

Encourage your child to remain indoors during high pollen count days (windy) and after thunderstorms.

In addition to avoid outdoor activities where there is high exposure to pollen. (i.e. mowing of lawn).

Identifying potential triggers can assist in the management of your child's asthma
Document adapted from the Inpatient Asthma Education Package Illawarra Asthma Project 1993. Revised 1998. Triggers Handout

Source: The Children's Asthma Resource Pack for Parents and Carers, June 2006
NSW Paediatric Network
Kids Health (CHW) Sydney Children's Hospital, Randwick Kaleidoscope, Hunter Children's Health Network
The Children's Hospital at Westmead
Tel: (02) 9845 3585
Fax: (02) 9845 3562
www.chw.edu.au
Sydney Children's Hospital, Randwick
Tel: (02) 9382 1688
Fax: (02) 9382 1451
www.sch.edu.au
Kaleidoscope, Hunter Children's Health Network
Tel: (02) 4921 3670
Fax: (02) 4921 3599
www.kaleidoscope.org.au

© The Children's Hospital at Westmead, Sydney Children's Hospital, Randwick
& Kaleidoscope, Hunter Children's Health Network - 2005-2009.

This document was updated on Wednesday, 4 August 2010.

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