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Related to Urticaria: atopic dermatitis


Hives or nettle rash; a skin condition characterized by the appearance of intensely itching wheals or welts with elevated, usually white centers and a surrounding area of erythema. Also known as hives.



nettle rash, an allergic reaction characterized by the sudden and rapid appearance on the skin (sometimes also on the laryngeal mucosa) of intensely itching wheals.

Urticaria is often caused by the sting of the nettle and certain other plants. Insect bites, temperature, and chemical agents are also among its causes. Other factors include parasitic worms, chronic constipation, liver and kidney diseases, and allergic sensitivity to some foods (for example, strawberries, citrus fruits, eggs, mushrooms, preserves, certain fish, pork, and chocolate). Urticaria is sometimes caused by hypersensitivity to drugs (especially to those of chemical origin). The rash associated with the condition is a manifestation of the inflammatory reaction and edema of the skin that result from a sudden increase in the permeability of the capillaries in the area. This results from the liberation of histamine from the mast cells of the skin by allergic alteration. Urticaria usually disappears without a trace within a few hours, although it sometimes recurs. It is treated by purgation (by enemas, laxatives), special diet (mostly milk and vegetables, with limited salt intake), and desensitizing and anti-histaminic agents.


Pavlov, S. T. Kozhnye i venericheskie bolezni, 2nd ed. Moscow, 1969.


References in periodicals archive ?
Once second-line therapies such as doxepin, leukotriene antagonists, corticosteroids, dapsone, sulfasalzine, and narrow-band UVB are exhausted, use off-label immunosuppressants for chronic urticaria as third-line treatment, he said.
Cold urticaria occurs most frequently in young adults -- though not exclusively -- and does not seem to favor a gender, Dr.
Identify and understand important and diverse types of therapeutics under development for Chronic Urticaria Or Hives
At rst Alison believed the outbreaks were cyclical and related to hormone surges but in recent years she has found that the urticaria can appear at almost any time - and does.
We searched the literature using the keywords "chronic widespread pain" and "chronic urticaria" and found only one article, and this was related to adult-onset Still's disease and urticaria.
The tendency to develop urticaria may run in families.
CIU, also referred to as chronic spontaneous urticaria (CSU) outside the United States, is a skin condition characterized by red, swollen, itchy hives on the skin2,3 and is diagnosed when hives spontaneously present and reoccur for more than six weeks2.
Acute urticaria is characterized by superficial swelling, erythema and pruritus on any area of the skin.
We report the case of a man who presented at our emergency department (ED) with angioedema of the lower lip, without urticaria.
He is one of just six people in the UK with the condition, cold urticaria.
Symptoms of this condition include immune deficiency, autoimmunity, inflammatory skin disorders and cold-induced hives, a condition known as cold urticaria.