Hives & Swelling (Urticaria & Angioedema) Resources

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Hives (urticaria) are the outward evidence of an allergic reaction. What causes hives? The causes of hives include a long list, such as common allergens (e.g. foods, pollen, plants, pet dander, latex), but hives can also result from insect bites, medications, illness or infection and even physical factors like tight clothing or as a result of a stress response. All hives are a rash, but not all rashes are hives. The easy way to tell hives vs a rash is that hives are raised and itchy and turn white when pressure is applied. If you’re trying to differentiate hives vs welts, they’re actually different words for the same thing.

Wondering how to treat hives or how to get rid of hives? There is a range of types of medications that have been shown to be effective as part of a hives treatment plan, from various antihistamines and anti-inflammatory medications to steroids and more. Some medications have long-term side effects, and so it is best to work with an allergy or immunology specialist for the best and safest outcome.Angioedema often accompanies hives. What is angioedema? It is the medical term for swelling that is similar to hives but occurs under the skin instead of on the surface of the skin. Causes of angioedema are often similar to those of hives, along with certain environmental factors or exposure. If you experience hives or swelling and are aware of the triggers, aim to avoid them. If you do not know the cause, you can work with our board-certified allergy and immunology specialists to diagnose and develop hives treatment solutions. Contact Allergy/Immunology Associates, Inc. to learn more.