I had a friend some years back that had the same problem you
describe. When he wore anything of metal, it would first start to
become etched from his sweat
- for example a wristwatch band. Then glasses - the earpieces would
start to deteriorate.
He mentioned rashes. He used to joke that he must have "alien
One time I was talking to him, and he was fiddling with a coin - and
the next day he showed me where he had left a thumbprint etched into
the coin! At some point, they started making glasses frames out of
titanium, and he is able to wear these with no problems. I don't have
any solutions, and I have since lost touch with him, but it does
He went to a Dr. who somehow did tests on his swat, and determined
it has a high amount of some sort of acid.
I'm not sure what type - perhaps this girl could see a Dr. about it.