Leah Douglas, MD The 2 skin disorders presented in this Dermatologic Look-Alikes can affect a patient’s trunk. One is caused by a fungus, the other not. Can you make the diagnosis? A 32-year-old ...

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 ...

Exercise-induced urticaria (EIU) is a rare condition in which a person experiences hives triggered by exercise. It can make physical activity more difficult, but some tips can help you stay active.