Skin reactions can be alarming, especially when they appear suddenly. Many people struggle to tell the difference between hives and a rash, but knowing the cause is the first step toward relief.

Characterized by extremely itchy red or flesh-toned bumps and welts on the skin, these longer-lasting hives come and go in a ...

Six months later the illness recurred, a pattern that prevailed for years ... Doctors ultimately decided it was hives, a ...