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Signs of Anaphylaxis

As with other allergies, anaphylaxis can trigger symptoms in any of these four body systems:

1. skin
2. gastrointestinal system
3. respiratory system
4. cardiovascular system

An allergic reaction may be a medical emergency if it happens in two or more of these systems — hives on the skin, for example, together with stomach pain.

The most common signs that a child who has been exposed to an allergen might have anaphylaxis are:

• difficulty breathing
• tightness in the throat or feeling like the throat or airways are closing
• hoarseness or trouble speaking
• wheezing
• nasal stuffiness or coughing
• nausea, abdominal pain, or vomiting
• fast heartbeat or pulse
• skin itching, tingling, redness, or swelling