Anaphylaxis is the most severe of all allergic reactions and can result in difficulty breathing, a sudden drop in blood pressure with subsequent loss of consciousness, and even death. Anaphylaxis is a medical emergency that requires immediate recognition, prompt medical treatment, and follow up care by an allergist.

It has been estimated that up to 15% of the population is at risk for anaphylaxis. Anaphylaxis can occur within minutes after exposure to a substance to which one is severely allergic. The most common substances that trigger anaphylaxis are foods, medications, and insect stings.

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