1 By Nisid Hajari Nisid Hajari is a member of the Bloomberg View editorial board and author of âMidnightâs Furies: The Deadly Legacy of Indiaâs Partition,â to be published by Houghton Mifflin Harcourt on June 9. By Nisid Hajari Nisid Hajari is a member of the Bloomberg View editorial board and author of âMidnightâs Furies: The Deadly Legacy of Indiaâs Partition,â to be published by Houghton Mifflin Harcourt on June 9.
About Hives. Hives (or urticaria) are red raised bumps or welts on the skin. They can appear anywhere on the body and can look like tiny little spots or large interconnected bumps. Individual hives can last anywhere from a few hours to a week (sometimes longer), and new ones might replace those that fade.
About 20% of people get hives -- itchy red or skin-colored welts also known as urticaria. Theyâre often caused by an allergic reaction to a food or drug. Usually, they go away quickly. For a small number of people, though, hives come back again and again, with no known cause. When new outbreaks happen almost every day for 6 weeks or more, itâs called chronic idiopathic urticaria (CIU). One percent or less of people have it. Itâs most common in people between the ages of 20 and 40.