Nickel Allergy

By Susha Cheriyedath, MSc
Nickel or nickel sulfate hexahydrate is a common allergen causing contact dermatitis in sensitized individuals. It is a chemical widely used in utensils, jewelry, coins, metal buttons, eyeglasses, paper clips, keys, enamel dyes, and electrical wiring. Nickel sulfate hexahydrate is also known by other names such as blue salt, nickel monosulfate hexahydrate, and single nickel salt. The American Contact Dermatitis Society declared nickel as the Contact Allergen of the Year 2008...

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