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Related to Rashes: heat rash, hives, shingles


nonspecific term for an eruption of the skinskin,
the flexible tissue (integument) enclosing the body of vertebrate animals. In humans and other mammals, the skin operates a complex organ of numerous structures (sometimes called the integumentary system) serving vital protective and metabolic functions.
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. It may result from skin allergy, skin irritation, or skin disease, or it may be a symptom of a systemic disease like measles, smallpox, or scarlet fever. A rash may appear as discolored spots or a general redness, or as blisters or pustules, either flat or raised above the surface of the skin. The rash may cause skin irritation—itching, tingling, burning, or pain—or it may not cause any discomfort. The appearance and distribution of a rash are often important factors for consideration in diagnosing a particular disease.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



an eruption on the skin or mucous membrane of man, the cause of which can be either external and internal. Rashes accompany skin and other types of diseases. The external causes can be physical or chemical, while internal causes include diseases of the nervous and hemopoietic systems, metabolic disorders and functional disorders of certain organs (digestion, endocrine glands), infectious diseases (measles, scarlet fever), and allergic reactions (urticaria). Rashes may be primary or secondary. Primary rashes appear on previously normal skin or mucous membrane (spots, wheals, vesicles, pustules, tubercles). Secondary rashes appear as a further development of primary elements (pigmentation, scales, crusts, abrasions, ulcers, fissures, scars). The location, number, combination, color, shape, depth, and duration of the eruptions are helpful in diagnosing the disease.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


A lay term for nearly any skin eruption, but more commonly for acute inflammatory dermatoses.
(mining engineering)
Very impure coal, so mixed with waste material as to be unsalable.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


Pathol any skin eruption
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
He cited data suggesting that nearly 15% of rashes are atypical and represent a major source of frustration to both patients and clinicians when conventional treatments fail.
Rashes were assessed by physicians and patients over an 8-week period.
Selan+ products are indicated for the prevention and treatment of diaper rash and other rashes caused by moisture, Stage I pressure ulcers, and amputee tissue trauma, as well as the itch associated with end-stage renal disease.
To play it safe, avoid treating diaper rash, eczema, or other rashes with skin lotions that contain peanut oil.
Skin rashes usually are accompanied by other symptoms such as itching, swelling, and, rarely, pain.
Overall, 27 patients had a simple morbilliform rash, without systemic involvement; 22 had a complex morbilliform rash with systemic involvement, including 9 with cutaneous manifestations of graft versus host disease (GVHD) and 13 with rashes secondary to drug exposure.
Though many people have developed rashes after taking medicines, most of the rashes are not allergic in nature.
Skin rashes often signify conditions elsewhere in the body and these can be malignant.
Approximately 77% of rashes were erythematous, well demarcated, and papular; less than 22% were pustular, macular, or confluent.
** Lamotrigine use may be reduced due to exaggerated fears of skin rashes or limited understanding of how to manage skin rashes
Wortman, a pediatric rheumatologist at the University of Oklahoma, Tulsa, and a dermatologist associate prospectively studied rashes on 64 children with Kawasaki disease and retrospectively studied images of rashes on 102 more.
Barson calls an epidemiology history that provides an alternative avenue for diagnosing the infectious diseases behind dermatologic problems, including rashes of the palms and soles.