What is anaphylaxis?
Anaphylaxis can be life-threatening - it's an emergency which needs immediate treatment.
Anaphylaxis is the most severe form of allergic reaction and can be life-threatening.
Anaphylaxis is an emergency that needs immediate treatment with an injection of a medicine called adrenaline (epinephrine). This is the medicine in automatic injectors such as the EpiPen®.
A child or young person with anaphylaxis needs to lie down - they must not stand or walk. If breathing is difficult, let them sit.
Phone 111 within New Zealand for an ambulance (use the appropriate emergency number in other countries).
Watch a video on how to use EpiPen®. The video shows an adult using an EpiPen® - you can follow the same steps for a child.
An EpiClub Mylan video on how to use EpiPen®. The video shows an adult using an EpiPen® - you can follow the same steps for a child.
Signs and symptoms of anaphylaxis
The signs and symptoms of anaphylaxis include:
- difficulty breathing or noisy breathing
- swelling of the tongue
- swelling or tightness in the throat
- difficulty talking or a hoarse voice
- wheeze or a cough that doesn't stop
- dizziness or lightheadedness
- loss of consciousness or collapse
- being pale and floppy (in young children)
- tummy pain or vomiting in children with insect allergy
The symptoms can happen within seconds of coming into contact with the allergen, or can take up to 2 hours to happen.
See information about anaphylaxis in English, Māori, Samoan, Tongan, Chinese, Arabic and other languages on the ASCIA website.
Anaphylaxis warning signs
In some cases, less dangerous allergic symptoms appear before anaphylaxis. These include:
- swelling of the face, lips and eyes
- hives or welts on the skin
- tummy pain, vomiting
- a feeling of 'doom' or a young child becoming quiet or clingy
Things that influence anaphylaxis
Several things can influence how severe anaphylaxis is, including:
- exercise
- heat
- in food-allergic people, the amount of allergen they have eaten and how the food was prepared
- not enough sleep
- having alcohol or drugs
Severe allergic reactions require urgent medical attention.
Action plans for allergic reactions or anaphylaxis
All tamariki (children) with food and insect sting allergy need to have an action plan for allergic reactions or anaphylaxis. These explain how to manage an allergic reaction.
Tamariki with food allergy need follow up to see whether their food allergies are going away.
ASCIA (the Australasian Society of Clinical Immunology and Allergy) has developed several action plans for use in Australia and New Zealand. See the various action plans on the ASCIA website.
