ALLERGIC DERMATITIS FROM NICKEL

Allergic reactions to nickel are a type of allergic contact dermatitis, which causes an itchy rash in response to a normally harmless substance. Regular or prolonged exposure to nickel can cause the allergy to develop, but like many allergies, the actual cause is unknown. In addition to coins and jewelry, nickel is found in eyeglass frames, zippers, belt buckles, cosmetics, detergents, and electronic devices like cell phones and laptops. Most reactions occur only where the nickel touched the body. Reactions can occur hours to days after exposure and may last anywhere from two to four weeks. In addition to a red, bumpy rash, a nickel allergy can cause severe itchiness, dry patches that resemble a burn, and fluid-filled blisters.

P.S. People with extremely sensitive nickel allergies may have reactions to foods containing higher amounts of nickel, such as canned foods, soy products, peas, cocoa, clams, and cashews.

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