What causes it?
Hives are usually allergic reactions to food, medicine, or animals. They can also be triggered by sun exposure, stress, excessive perspiration, or other, more serious diseases, such as lupus. Anyone can get hives. They are harmless and non-contagious. Hives may itch, burn, or sting. They rarely need medical attention as they tend to disappear on their own. However, in persistent cases, your dermatologist will assess the best way to help give you relief.