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

There are many different types of hives -- urticaria -- with many different causes. In most cases, these puffy, red, or skin-colored bumps and wheals appear suddenly due to an allergic reaction to ...

What if the food you eat and the way you handle stress could make a real difference for your chronic spontaneous urticaria?

These are over-the-counter (OTC) and prescription medications that block histamine, a chemical that causes your body to develop allergic symptoms such as sneezing, itching, a runny nose ...