Allergic reaction or infection

Sarah

Is this an infection or an allergic reaction? I am allergic to nickel. I got my belly done then ended up changing the original stud to this one because I believe it had nickel in it. Could this one from Claire’s still have nickel? It’s stainless steel. A piercer told me it has a small percentage of nickel still. Should I get a titanium metal? Where do I find those, just at a piercing shop?