Hives, or urticaria, can occur for many reasons, such as exposure to an allergen or a physical trigger, like pressure from tight clothing. It may also indicate an infection or another underlying ...

Hives are little bumps caused by an immune system reaction and can be short-term or chronic, and typically resolve on their own. Relief can be found from medications, anti-itch products, and at-home ...

Medically reviewed by Susan Bard, MD A rash under the breast often results from heat, moisture, eczema, allergies, fungal ...

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 ...

Stress affects every aspect of our lives and how you cope has a big impact on your overall health, including your skin. If you have hives, stress can cause a flare-up of hives. Such "stress rash," the ...

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Amber breaks out in hives if the temperature goes below 12C (53F) and wishes for a "normal life".

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.

This informational guide, part of PS's Condition Center, lays out the realities of this health concern: what it is, what it can look like, and strategies that medical experts say are proven to help.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Having a circular rash can spark fears that you’ve picked up ringworm. After all, the fungal infection is ...

A 16-year-old girl has been diagnosed with a rare, incurable allergy which causes her to break out in hives when the ...