They can be: Chronic hives are thought to be an autoimmune reaction to the cells that make histamine, and can be associated with swelling of the lips and tongue. This type of angioedema is usually itchy and rarely affects the back of the throat or causes trouble breathing. The hereditary form of angioedema does not cause hives and does not itch, but can cause trouble breathing. See an allergist for more info.
Answered 12/9/2013
5.6k views
A doctor has provided 1 answer
A doctor has provided 1 answer
5 doctors weighed in across 3 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question