What sort of problem is angioedema?

Hives: Angioedema is a hereditary or acquired abnormality of the chemical system of the body that is used normally to protect against germs and infections as well as foreign chemicals. Fortunately, the abnormalities of the systems have been well worked out and the angioedema is treatable, though not usually curable like an infection, rare cases lead to shock and death.

Swelling: Angioedema is a swelling of tissues. Some cases can be shown to be a lack of a particular enzyme, but the mild angioedema that occasionally causes swelling of the tongue or eyelid is not life threatening and usually can't be diagnosed. Angioedema is not hives; if it itches, it is not angioedema. Your allergist can help figure out what is going on, and help you if it is treatable.