Can hives be serious or life-threatening?
In most cases, hives may be itchy or painful, but usually fades within one to two days without causing any long-term harm. It is usually only potentially dangerous when it occurs with deep swelling or a serious allergic reaction, known as anaphylaxis. Seek urgent medical attention if you experience a racing heart, dizziness, difficulty breathing, or swelling.
Author: Lauren Donley
First answered: 18 Sep 2014
Last reviewed: 19 May 2018
Rating: 4.4/5 Votes: 488