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Angioedema is a swelling under the skin that sometimes forms in conjunction with hives. Some medical professionals call angioedema "giant hives" for this reason. Targeting the deeper layers of your skin, the condition primarily affects the face, in particular, the lips. While frustrating, angioedema is harmless and don't leave any scarring or lasting marks. In rare cases, angioedema may be a symptom of a more serious underlying condition, but for the most part, the symptoms of angioedema fade in time.

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1. What Causes Angioedema?

Angioedema is typically the result of an allergic reaction. The inflammation occurs when your body produces too much histamine, making your blood vessels swell. Angioedema is a more severe reaction than hives, despite being similar in presentation. Some of the more common allergens that can result in hives or angioedema are latex and insect bites. That said, airborne allergies like hay fever and dust mites can bring it on, as well. Angioedema may also develop as a result of an autoimmune condition such as lupus, or as a result of leukemia.

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.