Angioedema is a clinical entity defined as self-limiting edema localized in the deeper layers of the skin and mucosa and lasting for several days.1 Angioedema can be itchy and hot, with red swellings often large and uncomfortable.2
Angioedema primarily affects the face, lips, mouth upper airway and the extremities.2 It can be provoked by bradykinin and/or mast cell mediators, including histamine.1