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“Is urticaria genetic?” Although there are more and more families with several members suffering from urticaria, there is no sign that...

The clinical symptoms of chronic urticaria are a maculopapular rash, both flat or raised lesions on the skin, pruritus and angioedema...

When hives occur on only one part of the body, it might be due to contact with an irritant. Plants, pollen, food, household products or...

Surprisingly, hives can look "spongy"! "Why?" you may ask. Well, when a catalyst causes the skin cells to release histamine, small thin...

It's common to think that hives and rashes are the same thing but in reality, they're different. While hives are one type of skin rash,...

Acute urticaria is when the rash and/or angioedema lasts anywhere from a few hours to less than 6 weeks. In most cases, it appears...