CSU is a skin condition that causes hives and swelling lasting six weeks or more. The cause of the condition is often unknown, but in the majority of cases it's linked to an overactive immune system.

Doctors use a process of elimination to diagnose chronic hives, rather than a single test. The diagnostic process involves determining how long the hives have lasted and whether they're triggered by ...

Urticaria, more commonly called hives, can be acute or chronic, depending on how long symptoms last. Chronic urticaria can be treated with medication, and some people experience remission after 1 year ...

Both bug bites and hives can cause red, itchy bumps on your skin. While it can be difficult to tell them apart, learning key features and characteristics of each can help. Hives and bug bites are ...