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 ...

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 ...

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 ...

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.

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.

Pimples or a pimple-like rash can develop on any part of the body, including on the legs and thighs. Potential causes include folliculitis, keratosis pilaris, and hives. Pimples often appear as one or ...

"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 ...

But there’s one side effect that’s well established but little known and still puzzling to doctors: the “keto rash” or prurigo pigmentosa. This rash fits the man’s case perfectly—red, raised, itchy ...

Your child's doctor can help, but one of the biggest clues is itchiness. Since your baby or toddler won't be able to tell you how they're feeling, you'll need to watch for scratching behavior. It's ...

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