what causes hives in your body
Angioedema is a form of severe swelling beneath the skinâs surface. In some cases, the swelling occurs along with the appearance of hives. This is why angioedema is sometimes referred to as âgiant hives.â Hives are itchy, red welts that develop on the surface of the skin. Both angioedema and hives are typically caused by an allergic reaction to food or medication.