Nickel Allergy

Nickel allergy is a common skin reaction that occurs when a person’s immune system overreacts to nickel, a metal found in jewelry, watches, coins, and certain clothing fasteners. Contact with nickel triggers an allergic response, causing symptoms like redness, itching, swelling, and blistering at the site of contact. This allergy is a type of delayed hypersensitivity, meaning symptoms develop hours or days after exposure. To prevent reactions, individuals with a nickel allergy should avoid items containing nickel or use protective barriers like coatings or clothing to minimize skin contact.