Nursery World - A Unique Child Health: A guide to ... Anaphylaxis

Childcarers should be alert to the symptoms of a severe allergic reaction and know how a child at risk can be prepared to deal with it.

The WellChild Helpline provides information and advice

What is anaphylaxis?

Anaphylaxis is a severe allergic reaction which can be life-threatening. The whole body - the airway, breathing and circulation - can become affected very quickly (usually within minutes) after the person has come into contact with an allergen. An allergen is any substance that causes an allergy.

What causes anaphylaxis?

It is not known why some children develop anaphylaxis and others do not. The immune system usually fights off things that cause the body harm, such as diseases. When someone has an allergy, the body sees the allergen as a threat and this leads to a release of chemical substances from cells in the blood and tissues. The chemicals that are released act on blood vessels, which then causes swelling in the body. Even the tiniest amount of the allergen can cause a severe reaction.

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