Hives, also called urticaria, are circumscribed swellings on the skin that often are itchy. Often they are pink or red, but they don't have to be. Hives happen when the cells in the skin called mast cells release histamine, a chemical that causes tiny blood vessels (capillaries) to leak fluid. When this leaking fluid accumulates in the skin, it forms the swellings that we recognize as hives.
Hives can be triggered by physical factors such as heat, cold, exercise, sunlight, stress,...Read more
Each year I see hundreds of new patients with complaints of hives and swelling. Hives are intensely itchy skin rashes that resemble welts... Read more »
Frequently I see patients who develop rashes or hives for unclear reasons. Unfortunately when people experience hives on nearly a... Read more »
The beginning of summer kicks off the camping and hiking season, anxiously awaited by those who have endured a long cold winter. This year will... Read more »