What is angioedema? — Angioedema is a condition that causes puffiness in the tissue under the skin. People with angioedema might have swelling of the face, eyelids, ears, mouth, tongue, hands, feet, or genitals.Some people who get angioedema also get hives. Hives are red, raised patches of skin that are very itchy. Sometimes, people have symptoms of angioedema when they are having a dangerous allergic reaction. Call for an ambulance (in the US and Canada, dial 9-1-1) if you suddenly have puffiness or hives plus any of the following:
●Tightness in your throat
●Trouble swallowing your saliva
●Nausea and vomiting
●Cramps or stomach pain
Why did I get angioedema? — A common cause of angioedema is allergies. If you just got angioedema for the first time, it might be because you have a new allergy to something. Allergies to the following things can cause angioedema:
●Medicines (described below)
●Foods, such as eggs, nuts, fish, or shellfish
●Something you have touched, such as a plant, animal saliva, or latex
●ExerciseThe medicines that can cause angioedema include:
●Antibiotics (usually with hives, trouble breathing, and other symptoms of an allergic reaction)
●Medicines used to treat high blood pressure or heart disease called angiotensin-converting enzyme inhibitors (or “ACE inhibitors”) – Examples include enalapril, captopril, and lisinopril. People who get angioedema because of these medicines usually don’t have hives or itching.
Is there a test for angioedema? — There is no test for most types of angioedema. But your doctor or nurse should be able to tell if you have angioedema by learning about your symptoms and doing an exam.
How is angioedema treated? — The treatment depends on how serious your symptoms are. If you get angioedema because of a dangerous allergic reaction, you will need to be treated in a hospital right away. At the hospital, the staff will give you treatments to stop the allergic reaction and help your symptoms.If your symptoms are mild, you might not need treatment. But you should try to figure out if anything triggered your symptoms. If so, you will need to avoid that trigger. Your doctor might recommend that you take medicines called antihistamines. These are the same medicines people take for seasonal allergies. Your doctor might also prescribe medicines called steroids. Steroids can help with itching and reduce swelling. But you should not take steroids for any longer than you need them, because they can cause serious side effects. These are not the same as the steroids some athletes take illegally. If you got angioedema because of a medicine you took, your doctor will switch you to a different medicine.
Can angioedema be prevented? — You can lower your chances of getting angioedema by avoiding foods, medicines, or insects that make you have an allergic reaction. If you get angioedema a lot, your doctor might recommend that you take antihistamines every day.