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Understanding Allergies -- the Basics

What Triggers Anaphylactic Shock?

The most severe and dangerous allergic reaction is anaphylaxis, or anaphylactic shock, which typically begins within minutes after exposure and advances quickly. Although any allergen can trigger anaphylactic shock, the most common are insect stings, certain foods (such as shellfish and nuts), and injections of certain drugs. Treatment of anaphylaxis typically involves administration of epinephrine to arrest the progression and symptoms of anaphylaxis, and in severe cases, cardiopulmonary resuscitation (CPR) may be needed.

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WebMD Medical Reference

Reviewed by Luqman Seidu, MD on March 16, 2014

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