Hives, also known as urticaria, are raised, itchy welts on your skin that occur due to an allergen. The reaction is uncomfortable, but it’s often not serious. Hives are a common reaction. People with other allergies, such as hay fever, often get hives. Angioedema is swelling of the deeper tissue that sometimes occurs with hives. Like hives, angioedema can occur on any part of the body. When it occurs around the mouth or throat, the symptoms can be severe, including airway blockage. Dermatologists share how to get rid of hives quickly using over-the-counter medications and home remedies. Here's what causes hives, and how to treat them. Urticaria (hives) is a skin rash presenting as an itchy red rash or lumps called weals. Depending on the trigger, hives can last in duration from a few hours to a week. Urticaria, also known as hives, is an outbreak of pale red bumps or welts on the skin that appear suddenly. The swelling that often comes with hives is called angioedema. Allergic reactions. Need quick relief from hives? Here’s how to get rid of hives fast, with at-home remedies, anti-itch treatments, and topical creams. Hives, or urticaria, are itchy, raised welts that are found on the skin. Hives are often caused by an allergic reaction. Learn the signs and how to identify them. Find out about hives (also called urticaria), which is a raised, itchy rash that's usually caused by a reaction to things like food, pollen, insect bites or chemicals. Hives are raised bumps or welts that are usually itchy. Learn about triggers and treatment. Hives on the left chest wall. They are slightly raised. Hives Drawing of hives Hives, or urticaria, is a form of skin rash with red, raised, itchy bumps. [1] They may also burn or sting. [2] Hives can appear anywhere on the surface of the skin. Whether the trigger is allergic or not, a complex release of inflammatory mediators, including histamine from cutaneous mast cells, results in fluid.