Medically reviewed by Marisa Garshick, MD Scientists now think chronic spontaneous urticaria (CSU) is an autoimmune disease, ...

In a healthy body, mast cells (the “lookout” cells of the immune system) only release histamine when they detect a foreign invader, like pollen or venom. In CSU, these cells dump histamine into the ...

Discover common skin care ingredients that can cause allergic reactions and learn how to identify them in your products. Chronic idiopathic urticaria, also known as chronic hives or chronic ...

This informational guide, part of PS's Condition Center, lays out the realities of this health concern: what it is, what it can look like, and strategies that medical experts say are proven to help.

(BPT) – If you’ve had hives, you know how challenging they can be. But you may not know that there is more than one type of hives, or urticaria, and that treatments are available. A brief episode of ...

Hives, or urticaria, can occur for many reasons, such as exposure to an allergen or a physical trigger, like pressure from tight clothing. It may also indicate an infection or another underlying ...

"A lot of times, patients want to know if something they're doing is causing the hives," said Jenny Murase, MD, of the University of California, San Francisco, and director of Medical Dermatology ...

Q: My hives just won't go away. Is it possible my diet may be the cause? A: Chronic hives, or chronic urticaria, can certainly be frustrating for patients and their families. Understandably, many ...

"Medical Journeys" is a set of clinical resources reviewed by physicians, meant for the medical team as well as the patients they serve. Each episode of this journey through a disease state contains ...