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

Urticaria pigmentosa, also called maculopapular cutaneous mastocytosis, is a skin condition that causes spots on the skin and ...

Urticaria, or hives, is a common type of rash characterized by the formation of raised, red, itchy bumps on the skin. Urticaria is commonly associated with an allergy to food, medications, and ...