Hives (also called urticaria) refers to raised and splotchy areas of skin that can be caused by an allergic reaction to something. Hives may go away on their own.

Urticaria is characterised by very itchy weals (hives), with or without surrounding erythematous flares. The name urticaria is derived from the common European stinging nettle Urtica dioica. Urticaria can be acute or chronic, spontaneous or inducible.

Sep 15, 2022 · "Urticaria" is the medical term for hives. Acute hives last for up to six weeks, while chronic hives last longer. Symptoms of hives include redness, swelling, itching, and spreading across the skin.

Oct 1, 2024 · Hives — also called urticaria (ur-tih-KAR-e-uh) — is a skin reaction that causes itchy welts. Chronic hives are welts that last for more than six weeks and return often over months or years. Often, the cause of chronic hives isn't clear.

Hives, also known as urticaria, affects about 20 percent of people at some time during their lives. It can be triggered by many substances or situations and usually starts as an itchy patch of skin that turns into swollen red welts.

Oct 27, 2023 · Hives — also known as urticaria (ur-tih-KAR-e-uh) — is a skin reaction that causes itchy welts that range in size from small spots to large blotches. Hives can be triggered by many situations and substances, including certain foods and medications.

Mar 16, 2024 · Urticaria, also known as hives, is an outbreak of pale red bumps or welts on the skin that appear suddenly. The swelling that often comes with hives is called angioedema.

Jan 3, 2024 · Hives often appears as a raised, itchy rash. The medical name for hives is “urticaria.” People also call it welts, wheals, or nettle rash. Hives affects around 20% of people at some time in their...

Apr 17, 2023 · Urticaria, also known as hives, is a skin rash of raised, itchy bumps. The welts may also burn or sting. They often last hours or days, can move around, and don't leave lasting skin changes....

What is acute urticaria? Acute urticaria is urticaria, with or without angioedema, that is present for less than 6 weeks. It is often gone within hours to days. Who gets acute urticaria? One in five children or adults has an episode of acute urticaria during their lifetime.