TruckerFun.com

If you’ve ever bought cheap jewelry that leaves a greenish in color spot on your skin I’m sure you’ve been curious what causes it. Basically ~ there is a reaction caused by base metal to anyone who buys cheap jewelry.
The greening can occur to some people more quickly than others<, though, because everyone's composition is just a little bit different.

Even jewelry you pay more for can turn people’s skin green<, reason being it's not totally pure~ no matter how much it costs. Platinum rarely reacts with skin so you shouldn't have to worry if you own platinum jewelry. To keep gold jewelry turning your skin green confirm that its authentic and not made from cheap metal and then plated – it has only a very fine coating of gold over top of a base metal that can rub off. For 100% gold jewelry thats not rinsed or plated spending the extra on 18 karat gold will lower your chances of green skin.
Copper will almost always turn your skin green and you’ll have to just accept that if you wear copper.

Avoid sweating in your jewelry it can increase the green skin effect and also ask your jeweler if there is anything that he can coat the jewelry item with – to keep your skin from reacting. If you do this you can keep wearing your base metal jewelry without worry.
Keep in mind- your skin turning green is a harmless reaction. It’s simply a reaction and not allergies.
Metal allergic reactions will make you red plus it could also make your skin feel itchy and inflamed. Which is a far cry from green skin.
If you do get an allergy to a piece of jewelry stop wearing that right away. Green skin shouldnt scare you ore keep you from wearing your favorite pieces you may just have to clean your skin more so its not ugly.

All in all applying a coating is generally your best choice.