I wear a lot of jewelry. One of the things that I wear is a copper bracelet with the name, "JESUS" on it. It has healing powers. I had an extremely itchy back rash that woke me up while I was sleeping. After I started wearing this copper bracelet every day and night, the rash disappeared.
Rashes are typically caused by two things: A skin infection of some sort, or an allergic reaction. The former may worsen if the immune system cannot respond well enough, but they can be fought off naturally. The latter is quite common, and typically goes away after the irritant is removed and the area heals. Either way, it does not necessarily mean that the bracelet did or did not heal the area. More investigation might be required.
I already know that my copper bracelet healed the rash on my upper back. I also washed my upper back with hot shower water and put modern medicinal cream on my upper back. They were all effective, but out of the three methods, the copper bracelet worked the most, the hot shower worked the second most and the modern medicinal cream worked the least. However, the modern medicinal cream was the very most effective by far at clearing away the fungal infection off my chest and off the top of my forehead.