What is a severe allergic reaction?

A severe allergic reaction, also known as anaphylaxis, occurs in some people when they are exposed to a usually harmless substance, called an allergy trigger.

The body overreacts to allergy triggers and releases chemicals to protect itself. In severe cases, this reaction produces life-threatening symptoms.

Common triggers that can lead to a severe allergic reaction include:

Should you be carrying EpiPen®?

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