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Urticaria (hives) is a skin rash presenting as an itchy red rash or lumps called weals. Depending on the trigger, hives can last in duration from a few hours to a week.
Acute urticaria is urticaria (hives) that is present for less than six weeks. It is characterised by weals and sometimes angioedema, and resolves within hours to days.
This topic provides a differential diagnosis for urticaria and for urticaria -like conditions that resemble urticaria but are not caused by wealing. What is urticaria? Urticaria describes a group of conditions in whic...
Chronic inducible urticaria is more common than chronic spontaneous urticaria. Adults with chronic urticaria have a significantly higher prevalence of atopic dermatitis, asthma, and allergic rhinitis than a control po...
Urticaria affects up to one in four people at some time in their lives and can be classified by duration, acute or chronic, and by cause, whether spontaneous or inducible. Two or more different subtypes of urticaria m...
What is urticaria in children? Urticaria refers to a group of conditions in which weals (hives) or angioedema (swelling) develop in the skin. It is very common in children. A weal is a superficial swelling, usually pa...
Urticaria affects up to one in four people at some time in their lives and is classified by duration, acute or chronic, and cause, whether spontaneous or inducible. Acute urticaria is the daily or episodic occurrence ...
Cholinergic urticaria (heat bumps) is characterised by short-lived hives that occur due to sweating. Stimuli that can cause excessive sweating include exercise, spicy food ingestion, and emotional stress.
Heat urticaria, Contact heat urticaria, localised heat urticaria. Authoritative facts about the skin from DermNet New Zealand.
Images of urticaria, angioedema (hives). Authoritative facts about the skin from DermNet New Zealand.
