What is the difference between hives and a rash?
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Most people are bothered by skin irritations at some point in time. These irritations are so common and varied that they are called by different names, which can lead to confusion. When an allergen is responsible for triggering an immune system response, the irritation is an allergic skin condition. There are several types of allergic skin conditions. Hives and Angioedema Urticaria is the medical term for hives, which are red, itchy, raised areas of the skin.
It may appear on one part of the body or be spread across large areas. A much rarer type of urticaria, known as urticaria vasculitis, can cause blood vessels inside the skin to become inflamed. In these cases, the weals last longer than 24 hours, are more painful, and can leave a bruise. Urticaria occurs when a trigger causes high levels of histamine and other chemical messengers to be released in the skin. This extra fluid in the tissues causes swelling and itchiness. However, this is difficult to diagnose and the treatment options are the same. Read more about the causes of urticaria.
Official answer: The main difference between hives and a rash is that hives are a particular type of rash, characterized by swollen.
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Skip to content. Learn the signs and symptoms of food allergy. The skin rash could be hives, and the itching from hives may range from mild to severe. Hives, also known as urticaria, affects about 20 percent of people at some time during their lives. Scratching, alcoholic beverages, exercise and emotional stress may worsen the itching. Symptoms can last anywhere from minutes to months — or even years. There are two types of hives — short-lived acute and long-term chronic.
Medically reviewed by C. Fookes, BPharm Last updated on Jul 29,
What are hives (urticaria)?
Hives, which are also known as urticaria, are a reaction on your skin that causes itchy and swollen welts. The reaction has many triggers including exposure to foods, medications, allergens, or other substances. To recognize signs of hives, pay attention to itchy or stinging areas on your skin, which could develop into welts. You can wash hives that are limited to one part of your body with soap and water to help relieve them. Additionally, try taking a cool bath to soothe your skin. For tips from our Medical co-author on how to identify the causes of hives, read on!