We report two cases of contact urticaria from curcumin. These cases are mediated by two different mechanisms of contact urticaria: nonimmunologic and immunologic (immunoglobulin-E mediated).

Cholinergic urticaria (also called cholinergic angioedema ... CU hives pop up within 6 minutes of contact with a trigger. They last about 30 minutes to an hour or two before they fade away.

Medically reviewed by Daniel More, MD You can be allergic to water. However, it is an extremely rare condition. Aquagenic ...

Insect bites, worm infestation and infections also commonly result in urticaria. Contact with dogs, cats, pollens, plants, and blood transfusions may also cause urticaria. Auto immune mechanisms may ...

Clinicians describe urticarial dermatitis as a combination of urticaria and dermatitis features. Similarly, protein contact dermatitis comprises cutaneous hypersensitivity reactions that follow ...

"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 ...

Vice President Kamala Harris is in “excellent health” and “possesses the physical and mental resiliency” required to serve as president, her doctor said in a letter released Saturday that ...

Douglas Powell, MD specializes in the treatment of allergic contact dermatitis, dermatitis, and urticaria/hives. He is board certified in dermatology and is a member of the American Academy of ...

Contact urticaria is localized color changes and swelling on the skin that appear immediately after coming into contact with a specific substance. Contact urticaria can result from a variety of ...

Contact urticaria from spices is relatively common. [10,11] The immunologic variant is IgE mediated and is treated with avoidance and antihistamines. The mechanism of the nonimmunologic variant is ...