this doesnt answer your question but I tried it on a nasty rash on the skin in the groin area and it didnt work.
spray bottle of hydrogen peroxide seems to have helped the most for anyone who gets this
I have a life long friend who swears by “Colloidal Silver” treatments. But he actually grinds up silver coins himself and stirs it up into some kind of shake. So it might not count to the purists here. Grinding up old US coins is not giving him pure silver. The old US coins that he grinds up are only about 90% silver and the rest is copper. Eating ground up silver is a bad idea; eating ground up copper is worse.
Everytime I see him he looks worse although he claims that he is “getting better”. His blue gray tint makes him look like a vampire... he actually started out looking a bit like Grandpa Munster. He is currently only 58 but looks 78. I have told him that he is doing something that seems to be making him more unhealthy, but he won’t listen to me.
People usually try to avoid eating heavy metals, but silver gets a pass.