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Epistaxis

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Ether

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Erythema

Definition

• Erythema is abnormal redness and inflammation of the skin caused by the congestion and dilation (widening) of the capillaries (tiny blood vessels). The effect is usually localized or patchy. In layman's terms, erythema is a skin rash.

  Some references include the mucous membranes as well as the skin in their definition.

Additional Information

Rashes have many different causes such as heat, drugs, ultraviolet rays, ionizing radiation, over-exposure to sunlight and/or allergic reactions.

The term "erythema" is often used in conjunction with other words or modifiers to indicate a very specific type of rash. For example, erythema multiforme refers to a skin rash that results from an allergic reaction.

MSDS Relevance As far as an MSDS is concerned, erythema most often indicates a rash that forms as a result of skin contact with the material (see contact dermatitis). Therefore, it is important to avoid contact of such materials with the skin, mucous membranes or eyes. Use appropriate personal protective equipment (PPE) such as gloves, aprons, goggles, dust masks etc. as necessary to prevent contact or exposure. Further Reading Erythema multiforme at The NIH's MedLine Plus. Erythema multiforme at Discovery Health Channel. A physician-oriented discussion of erythema multiforme at eMedicine.com. Includes graphic pictures. Erythema multiforme at Yahoo! Health.

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See also: Dermatitis, edema, lesion, urticaria, vesicant.

Disclaimer: The information contained herein is believed to be true and accurate, however ILPI makes no guarantees concerning the veracity of any statement. Use of any information on this page is at the reader's own risk. ILPI strongly encourages the reader to consult the appropriate local, state and federal agencies concerning the matters discussed herein.