This video has been medically reviewed by Corinne Savides Happel, MD The same inflammatory response seen with allergic hives is at work with physical urticaria but the rash and welts may look ...

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.

Management of urticaria de pends on its cause. Aggravating factors should be identified from the history, and triggering stimuli for physical urticaria avoided. Simple cooling lotions, as 0.5% to ...

A thorough history and physical examination are often sufficient to make the diagnosis of urticaria. Blood tests are unnecessary for mild ordinary urticaria responding to antihistamines.