STERLING SILVER EARRINGS For those who are prone to metal allergy, wearing earrings could possibly lead to an allergic reaction. Nickel is the most common cause of metal allergy and contact dermatitis. When an earring containing nickel comes into contact with a piercing, nickel is naturally absorbed through the skin. The most obvious reactions are scaling of the skin, undue irritations and eczema in the piercing. These conditions may persist and become a chronic condition. A nickel allergy can be effectively minimized by the use of sterling silver earrings. You may thus wear your earrings in complete safety and with full confidence.