What is urticaria?
Urticaria, or hives, is a condition in which red, itchy, and swollen areas appear on the skin - usually as an allergic reaction from eating certain foods or taking certain medicines.
What foods commonly cause hives?
What medicines commonly cause hives?
Other causes of hives:
What is angioedema?
Angioedema is an allergic reaction that causes swelling deeper in the layers of the skin. It most commonly occurs on the hands, feet, and face (lips and eyes).