Hives (also known as urticaria) are red, itchy welts that result from a skin reaction. The welts vary in size and appear and fade repeatedly as the reaction runs its course. Some people develop recurring, itchy hives without an apparent allergic trigger, which can be equally frustrating and uncomfortable.
While antihistamines (such a Zyrtec, Allegra, Claritin and Benedryl) are commonly relied upon to manage the symptoms of hives, not everyone responds to them.
Miami Derm and Laser is is seeking adults who experience hives that are not effectively treated by antihistames to evaluate an investigational medication for it.