noun. Swelling of the lower layers of the skin, often around the mouth, or of the mucosa or submucosa of the mouth or throat which can appear quickly in response to an allergen or due to other conditions

noun. recurrent large circumscribed areas of subcutaneous edema; onset is sudden and it disappears within 24 hours; seen mainly in young women, often as an allergic reaction to food or drugs

"While hives develop on the skin's surface, angioedema is a swelling of the deeper layers of the skin."

dropsy  edema  hydrops  oedema  

brisance  bronchospasm  criticality  dankness  eczema