Angioedema Angioedema is a type of swelling that affects the deeper layers of the skin. The swelling is sometimes accompanied by hives, which are red, itchy welts that develop on the surface of the skin. This is why angioedema is sometimes referred to as “giant hives”. Causes of Angioedema Angioedema… Continue Reading Angioedema – Angioedema Treatment – Angioedema Cure – Angioedema Causes on Lips