Urticaria, which is also known as Hives is a disease which is characterized by the sudden development of itchy and swollen bumps on the skin. These bumps can appear if the body reacts to any allergens or can even appear for reasons not known. They last for less than 1-2 days in the same spot and once they disappear, they don’t leave any trace/scar behind. These bumps can develop on any part of the body and they vary in size. When hives join together to form a group, they are called plaques. However, when these bumps develop under the skin, the condition is termed as Angioedema. It is similar to hives but lasts longer than it and the swelling vanishes in less than a day.
Urticaria is classified into Acute and Chronic urticaria depending upon the time period it lasts for.