What is nickel allergy?
Nickel allergy is actually classified as “Allergic Contact Dermatitis”. That name is given to any substance that causes an allergic reaction when in contact with the skin. It usually starts as a redness and swelling. Without removal of the agent causing the reaction it can progress to blisters and open fissures. These wounds can then become infected. In addition, there are many foods that are high in nickel and there is a school of thought that nickel can attack from the inside as well.