Not Just Another Allergy: What Are Hives?

Hives are raised, red, itchy welts that appear suddenly on the skin. Unlike a basic allergy rash, hives can be triggered by a wide range of causes—from certain foods, medications, and insect bites to stress, temperature shifts, and even underlying autoimmune conditions.

This inflammatory response is caused by the release of histamine, a chemical your body produces when it detects a potential threat. In some cases, the reaction is short-lived (acute hives), but in others, it can become chronic, lasting for months or even years.

 How to Recognize the Symptoms of Chronic Hives

If you’re unsure whether your symptoms are related to hives or another skin issue, here are some common signs to watch for:

• Itchy, red welts or bumps that move