When your skin is red, itchy, and irritated, it could be a rash or it might be hives. We spoke with experts to learn how to ...

Learn when rashes signal medical emergencies. Color, location, and symptoms reveal dangerous conditions needing urgent care.

The symptoms of drug-induced skin reactions can range from a mild itchy rash to more serious reactions, such as widespread blistering or anaphylaxis. Skin reactions may appear right away after ...

Hives are usually caused by an allergic reaction where the immune system releases histamine in response to a trigger. "Common triggers include certain foods such as shellfish, nuts, and eggs ...

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.

Hives (urticaria) are outbreaks of discolored bumps. They’re caused by allergies or allergy-like skin reactions to irritants. Hives are a type of rash. There are many other types of rashes.

Solar urticaria is a rare allergic reaction to sun exposure. The condition causes an itchy rash or hives that appear on any skin that has been exposed to the sun. The more skin that is exposed to ...

It looks almost exactly like regular hives but does not increase a person’s risk for anaphylaxis (i.e., a severe allergic reaction that causes difficulty breathing and swelling of the throat ...

All over the country, people have been sharing clips of their experiences with allergic reactions after having their hair braided. Swelling, hives, and unbearable itching are some of the most ...