Hives that recur daily over 6 weeks or more are called chronic hives. Allergies, autoimmune conditions, ... Your environment or certain activities can cause you to break out in hives.

The ones that break out when you're sweaty from a workout, nervous, or just hot are called cholinergic urticaria (CU). ... Stop or slow down your workouts if you break out in hives.

"Steven and I both broke out in hives after the show. Mine was on my face. His was all over his body because he's weak like that," Wong said. "It definitely took a toll on us, but we didn't even ...