Dermatitis de Contacto

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Got a Rash? You Might Be Allergic to Nickel

OVERVIEW The word “allergy” likely conjures images of watery eyes and runny noses, but dermatologists often encounter a different type of allergic reaction: allergic contact dermatitis, a rash that occurs after the skin comes into contact with an allergen. The substance causing the reaction may be unclear in some cases, especially when that substance is nickel from the patient’s diet, nickel in a medical implant or an ingredient in topical medication, but a dermatologist can identify the source of the problem. AMERICAN ACADEMY OF DERMATOLOGY EXPERT Information provided by board-certified dermatologist Jennifer Chen, MD, FAAD, clinical assistant professor, dermatology, Stanford Hospital and Clinics, Stanford, Calif. DIETARY NICKEL Nickel is one of the most common causes of allergic contact dermatitis, Dr. Chen says, and once you’ve developed an allergy to it, you may have a reaction to any exposure. Although people may not think their diet could cause a reaction on their skin, sh

"Hypoallergenic Cosmetics"

Hypoallergenic cosmetics are products that manufacturers claim produce fewer allergic reactions than other cosmetic products. Consumers with hypersensitive skin, and even those with "normal" skin, may be led to believe that these products will be gentler to their skin than non-hypoallergenic cosmetics. On this page: Hypoallergenic Cosmetics Introduction Historical Background More Resources Hypoallergenic Cosmetics There are no Federal standards or definitions that govern the use of the term "hypoallergenic." The term means whatever a particular company wants it to mean. Manufacturers of cosmetics labeled as hypoallergenic are not required to submit substantiation of their hypoallergenicity claims to FDA. The term "hypoallergenic" may have considerable market value in promoting cosmetic products to consumers on a retail basis, but dermatologists say it has very little meaning. October 18, 2000 The information above is current and is updat

Dermatitis alérgica de contacto a parafenilendiamina por tatuajes con henna en población pediátrica

José María Ortiz Salvador , , , Altea Esteve Martínez , Daniela Subiabre Ferrer , Ana Mercedes Victoria Martínez , Jesús de la Cuadra Oyanguren , Violeta Zaragoza Ninet Resumen Introducción Los tatuajes con henna son una práctica común en la población adolescente. En la mayoría de las ocasiones, la henna se mezcla con parafenilendiamina (PPDA) para mejorar las características del tatuaje. La PPDA es un potente alérgeno que causa con frecuencia dermatitis alérgica de contacto.

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