Chronic spontaneous urticaria is an idiopathic syndrome defined by recurring itch, hives, or angioedema (or a combination of ...

Xyzal (levocetirizine) and Zyrtec (cetirizine) are over-the-counter (OTC) allergy medications. Learn about their key ...

For patients with symptomatic chronic spontaneous urticaria after treatment with second-generation H1-antihistamines, ...

Skin reactions can be alarming, especially when they appear suddenly. Many people struggle to tell the difference between ...

Stress is a nasty cycle: Feeling stressed can affect several skin and hair conditions, and living with those conditions can make you feel even more stressed.

To improve patient understanding and adherence to treatment, I explain that CSU differs fundamentally from allergic hives. While allergic reactions are triggered by external allergens such as ...

Chronic urticaria (CU) is a dermatological condition characterized by recurrent wheals (hives), angioedema (deep tissue swelling), or both, persisting for over 6 weeks. 1 Unlike acute urticaria ...