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What Is Angioedema?
Angioedema is a swelling, similar to hives, but the swelling is beneath the skin rather than on the surface. Hives are often called welts. They are a surface swelling. It is also possible to have angioedema without hives.
See also:
Alternative Names
Angioneurotic edema; Welts
Causes, incidence, and risk factors
Angioedema may be caused by an allergic reaction. During the reaction, histamine and other chemicals are released into the...
Read moreMore information on "What Is Angioedema?"
From Our Experts
Hereditary Angioedema
As an allergist/immunologist, I am frequently asked to see patients with angioedema or swelling. Although many times the source of... Read more »
Hereditary Angioedema : New Therapies for Rare but Potentially Fatal...
"Doc, I've had swelling off and on for more than 15 years. The medications my doctor has been giving me don't seem to work as well. It... Read more »
From Our Sources
Angioedema
Source: ADAM Encyclopedia
Angioneurotic edema; Welts Prevention To prevent angioedema from coming back: Avoid irritating the affected area. Stay away... Read more »
Angioedema
Source: ADAM Encyclopedia
Angioneurotic edema; Welts Treatment Mild symptoms may not need treatment. Moderate to severe symptoms may need treatment. Breathing... Read more »
Angioedema
Source: ADAM Encyclopedia
Angioneurotic edema; Welts Symptoms The main symptom is sudden swelling below the skin surface. You may also develop welts or swelling... Read more »
Hereditary angioedema
Source: ADAM Encyclopedia
Hereditary angioedema is a rare but serious problem with the immune system that is passed down through families. It causes swelling, particularly of... Read more »
Hives
Source: ADAM Encyclopedia
Hives are raised, often itchy, red welts on the surface of the skin. They are usually an allergic reaction to food or medicine.Alternative... Read more »
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