Ingredients in some vitamin supplements may cause hives or a skin rash. Treatments include antihistamines and topical corticosteroids.

If your skin suddenly turns red, itchy, or inflamed, you may find yourself wondering whether it’s a simple rash or a case of hives. While both conditions affect the skin and can look alike, they are ...

Both bug bites and hives can cause red, itchy bumps on your skin. While it can be difficult to tell them apart, learning key features and characteristics of each can help. Hives and bug bites are ...

Exercise-induced urticaria (EIU) is a rare condition in which a person experiences hives triggered by exercise. It can make physical activity more difficult, but some tips can help you stay active.