Some people do not have the strains of EBV that feed off of the copper that causes skin problems.
If you have not had eczema / psoriasis / skin sloughing off and forming hideous lesions, then it (likely) means those particular strains are not present. There are other strains of EBV that cause chronic illnesses like multiple sclerosis, fibromyalgia, etc. which are then misdiagnosed as "autoimmune diseases," the prescriptions of which will only make the problem worse as your body is actually trying to defend itself (but doesn't have the right tools as EBV lives in white blood cells).
I believe any high quality water filter should remove 99.9%+ of copper residue.
Other than that, certain foods slowly remove copper/mercury from your body.