Angioedema

Angioedema is swelling of your face, lips, tongue, and throat. Angioedema is often caused by an allergic reaction.

• The swelling may get so bad that you can't breathe

• Angioedema can start suddenly and come and go for weeks or months depending on the cause

Go to the emergency room if you have swelling of your face or throat.

Angioedema may be your body’s reaction to:

• Medicine, particularly a type of blood pressure medicine called an ACE inhibitor

• Insect stings or bites

• Allergy shots

• Food, such as eggs, fish, nuts, and fruit

Angioedema may be caused by another health problem. It can also run in your family (hereditary angioedema).

Angioedema usually causes swelling in your face, lips, and tongue. Sometimes the inside of your mouth and throat swell up, making it hard to swallow or breathe. Your voice may sound hoarse.

Along with the swelling, you may also have these symptoms:

• Hives that come and go (red, itchy, raised patches on the skin)

• Feeling sick to your stomach, throwing up, or belly cramps

Images of Angioedema

Angioedema

This photo shows swelling of the lips in a person with hereditary angioedema.

By permission of the publisher. From Joe E, Soter N. In Current Dermatologic Diagnosis and Treatment, edited by I Freedberg, IM Freedberg, and MR Sanchez. Philadelphia, Current Medicine, 2001.

Angioedema of the Tongue

This person has a swollen tongue due to angioedema.

SCIENCE PHOTO LIBRARY

Angioedema of the Lips

This person has swollen lips due to angioedema.

DR P. MARAZZI/SCIENCE PHOTO LIBRARY

Angioedema

This photo shows swelling of the lips in a person with hereditary angioedema.

By permission of the publisher. From Joe E, Soter N. In Current Dermatologic Diagnosis and Treatment, edited by I Freedberg, IM Freedberg, and MR Sanchez. Philadelphia, Current Medicine, 2001.

Angioedema of the Tongue

This person has a swollen tongue due to angioedema.

SCIENCE PHOTO LIBRARY

Angioedema of the Lips

This person has swollen lips due to angioedema.

DR P. MARAZZI/SCIENCE PHOTO LIBRARY

Doctors can tell based on your symptoms and by examining you. If doctors can’t find the cause, they’ll ask you questions, have you stop taking medicines you might be allergic to, and may do tests.

The most important thing is to keep your breathing passages open. If you're having trouble breathing, doctors may:

• Put a breathing tube down your throat

Other treatments depend on what doctors think caused your angioedema. Doctors may give you:

• Antihistamines to lessen itching and swelling

• Corticosteroids

If you have hereditary angioedema, there are special medicines doctors may give you by vein (IV).