Hives (urticaria) are a common skin reaction that causes bumps, raised patches, or both. They are one way the body responds to an allergen or trigger. Reactions can be uncomfortable but aren’t ...

Hives, or urticaria, are a common skin rash that appears as raised, itchy welts. Sometimes, hives resolve quickly on their own, but if they persist, over-the-counter medications often help. Hives ...