rash

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rash,

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.

Rash

 

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.

rash

[rash]
(medicine)
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.

rash

Pathol any skin eruption
References in periodicals archive ?
In such cases, skin rashes caused by certain fabric materials is usually due to the skins over-sensitive behaviour, as apposed to the result of an allergic reaction.
Fred Rose decided that he'd heard enough about Vietnamese women and children with skin rashes, asthma and birth defects.
A friend suffering from skin rashes is going to try a balaclava-style nickel head covering while others were investing in nickel bed-drapes, Mrs Wright said.
These include sneezing, wheezing, watery eyes and skin rashes to anaphylaxis, a condition characterized by breathing difficulties and low blood pressure that can cause shock or even death.
The 39-year-old Los Angeles man wishes everyone could see the horrible sores, boils, and skin rashes that have afflicted five of his close friends, victims of an epidemic of drug-resistant staph that is spreading among gay men in large urban areas.
A later reaction between the antigen and the antibody releases chemicals that affect many different tissues, causing symptoms ranging from minor skin rashes, headaches, vomiting, and diarrhea, to, in rare instances, anaphylaxis and death.
However after the age of 21 Morgan says his health began to decline and he had random chest pain, back pain, skin rashes, insomnia, nearly constant stiffness and severe depression.
The company also reiterated the importance of the 14 day lead-in for nevirapine therapy, in which the drug is administered only once a day at 200 mg, as a measure for reducing the incidence of serious drug-related skin rashes.
Some skin rashes and sores (also called lesions or ulcers) are very specific to lupus, while others can occur in other diseases as well.
These ranged from minor symptoms such as skin rashes to major problems such as heart attacks, reports the Independent.
John's wort to skin rashes after sun exposure, but this is the first report of nerve damage linked to the "photoactive hypericins" in the popular "anti-depressant" herb.
They will suffer from a high fever and conjunctivitis, along with skin rashes and swelling of the glands in the neck.