Hives, also known as urticaria, are raised, itchy welts on your skin that occur due to an allergen. The reaction is ...

Medically reviewed by Brendan Camp, MD Hives and eczema are two of the most common skin disorders. Hives, clinically known as ...

"While it is not a true allergy, cold urticaria is often referred to in everyday language as an allergic reaction to cold. "It is a rare condition that results in rashes or hives." ...

Are you having an allergic reaction? Did you catch something contagious? But your mystery rash may have a much simpler explanation. Urticaria, more commonly known as hives, can be a natural ...

The U.S. Food and Drug Administration on Wednesday warned about the risk of a rare but serious allergic reaction with the use of some multiple sclerosis drugs including Teva's Copaxone.

A woman with a known nut allergy had a severe allergic reaction after sex ... of the tissues below the surface of the skin — and hives appeared across her body. She also felt faint and short ...

Two popcorn seasoning products have been recalled nationwide because of fears they could trigger life-threatening allergic reactions. TS Food Packaging initiated the recall because of an undeclared ...