Last week I went to PT and as usually he started me off with stim(tens). Because I have had more pain to the left side of my spine on my upper back he placed one of the four pads there.
On Friday I glanced back and noticed that I had a red mark about 4 inches long and a half inch wide about where the edge of the pad was. It looked kind of mottled. No pain.
Has anyone ever heard of this? I'm guessing that it may have burst a blood vessel under the skin and the vibration jiggled the blood into this straight line. That's about the best explanation I can think of. I'm going to ask him today about it.