What is angioedema?
A person with angioedema has swelling of the face, mouth, throat or intestines, usually due to an allergic reaction. A drug side effect is a common cause of angioedema.

What are the symptoms of angioedema?
Symptoms of angioedema include hives, facial swelling, mouth or tongue swelling, and the rapid onset of a hoarse voice of difficulty swallowing.

How does the doctor treat angioedema?
Treatment for angioedema may include epinephrine injections, antihistamines, corticosteroids, and other medications that diminish the allergic response. Allergy shots may be helpful in some individuals.