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What is angioedema?

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Angioedema is a reaction that sometimes happens along with hives. It’s swelling under your skin. It often affects your eyes and lips, and sometimes your genitals, hands, and feet.

It’s rare, but the swelling from angioedema can happen in your throat and cause trouble breathing. If that happens, call 911.

From: Hives: What You Need to Know WebMD Medical Reference

SOURCES: 

American College of Asthma, Allergy and Immunology: "All About Hives."

American Academy of Dermatology: "Hives."

MedlinePlus Medical Encyclopedia: "Hives."

Reviewed by Dan Brennan on May 07, 2019

SOURCES: 

American College of Asthma, Allergy and Immunology: "All About Hives."

American Academy of Dermatology: "Hives."

MedlinePlus Medical Encyclopedia: "Hives."

Reviewed by Dan Brennan on May 07, 2019

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What causes hives?

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