- Urticaria (Hives): a complete overview — DermNet
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: Causes, Features, and Treatment — DermNet
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
- Urticaria and urticaria-like conditions - DermNet
Ordinary urticaria Spontaneous or 'ordinary' urticaria is divided into acute urticaria (lasting a few hours or days or up to six weeks) and chronic urticaria (persisting more than six weeks, and sometimes life-long) Acute urticaria is self-limiting and often related to infection, and less often due to food or is drug-induced
- Chronic urticaria - DermNet
What is chronic urticaria? Chronic urticaria is defined as daily itchy wealing of the skin for more than six weeks Chronic urticaria may be spontaneous or inducible, which may co-exist
- Chronic spontaneous urticaria - DermNet
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 may co-exist in one person Acute urticaria is the daily or episodic occurrence of weals, angioedema, or both, for under 6 weeks
- Chronic inducible urticaria - DermNet
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 of weals, angioedema, or both for less than 6 weeks Causes can include infections and allergies, but more often, the cause is
- Urticaria in children - DermNet
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 pale or skin-coloured It is often surrounded by an area of erythema and can last from a few minutes to 24 hours
- Aquagenic urticaria - DermNet
Assess skin for an urticarial reaction To exclude cholinergic urticaria, examine for urticaria after an exercise test to raise the core body temperature Other physical urticarias to exclude on testing include pressure urticaria, cold urticaria, and heat urticaria What is the differential diagnosis for aquagenic urticaria?
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