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Hives, also known as urticaria, is a kind of skin rash with red and/or flesh-colored, raised, itchy bumps. [1] Hives may burn or sting. [ 2 ] The patches of rash may appear on different body parts, [ 2 ] with variable duration from minutes to days, and do not leave any long-lasting skin change. [ 2 ]
Chronic spontaneous urticaria (CSU) also known as Chronic idiopathic urticaria (CIU) is defined by the presence of wheals, angioedema, or both for more than six weeks.The most common symptoms of chronic spontaneous urticaria are angioedema and hives that are accompanied by itchiness.
There is usually no associated itch or urticaria, as it is not an allergic response. Patients with HAE can also have recurrent episodes (often called "attacks") of abdominal pain, usually accompanied by intense vomiting, weakness, and in some cases, watery diarrhea, and an unraised, nonitchy splotchy/swirly rash. These stomach attacks can last ...
The first outbreak of urticaria can lead to other reactions on body parts not directly stimulated, scraped, or scratched. In a normal case, the swelling will decrease without treatment within 15–30 minutes, but, in extreme cases, itchy red welts may last anywhere from a few hours to days.
Delayed pressure urticaria is known as one of the more painful subsets of physical urticaria due to formed hives being deep-seated and appearing after 4–6 hours. [ 1 ] Causes
[9] [10] Treatment primarily involves managing symptoms and includes the use of antihistamines, corticosteroids, monoclonal antibodies , and in some cases, immunosuppressive drugs. [11] [12] Despite ongoing research, many aspects of autoimmune urticaria remain poorly understood, and it continues to be a challenging condition to manage.
Urticarial vasculitis (also known as "chronic urticaria as a manifestation of venulitis", "hypocomplementemic urticarial vasculitis syndrome", "hypocomplementemic vasculitis" and "unusual lupus-like syndrome") [1] is a skin condition characterized by fixed urticarial lesions that appear histologically as a vasculitis.
The history of the patient and the outcomes of skin provocation testing are used to diagnose pressure urticaria. In clinical practice, a variety of provocation test types are employed. Applying 15 pounds of weight on the shoulder, forearm, or thigh for 15 minutes is known as the "sandbag test."