Allergist and Immunologist Questions Allergies

What are the symptoms of a nickel allergy?

I think I'm allergic to nickel, but I was never tested for it. After wearing a fake ring, I noticed a rash and bumps in that area. Do you think this could be an allergy? It's a little itchy there too.

4 Answers

Yes. It is a type of reaction called contact dermatitis. Usually, it starts 12-24 hours after contact and it can get blisters around 48-72 hours. If it is always associated with metal, then nickel, cobalt, or chromium are the most common. The only treatment is avoidance so testing may not be needed. Just keep these cheap metals away from your skin.
If you are interested to be tested you can see an allergist who can offer you a patch test for nickel and any other chemicals or metals you may be reacting to - they will determine the proper testing once they obtain your clinical history in more detail.
It is a contact dermatitis similar to poison ivy. The reaction is inflammatory only where the metal contacts the skin. Best example is the chronic inflammation on the stomach where the nickel button on jeans persistently contacts the skin. The most common examples are caused by inexpensive jewelry - pierced earrings, etc.
Nickel allergy, aka Allergic Contact Dermatitis is one of the most common contact allergies. So, yes, you could have a contact allergy to nickel. Another condition which resembles nickel (contact) allergy is irritant dermatitis. You cannot wear this ring and see what happens. You can also apply hydrocortisone cream on the rash. You can also see your doctor, if you want to know for sure.
Hope this information helps.