Chronic idiopathic urticaria (CIU) is a confusing condition. It looks like an allergic reaction. It acts like an allergic reaction. But it isn’t an allergic reaction.
Imagine that you break out in hives anytime you are exposed to the cold. Not just when the temperatures dip outside but swimming in a pool or drinking a cold beverage.
Chronic urticaria, or hives, is more common in women than in men. It can suddenly appear in mid-life and, might be associated with hormonal changes, including those that occur during menopause.
Does your skin become extremely itchy when you take a hot shower or exercise in warm weather? Cholinergic urticaria, or heat hives may be to blame.