It just happened to work out that my monthly massage was 3 days after my shoulder pain. I have been gently moving it, and each day it’s been a little better. I told my lady who regularly does my massages, about my left shoulder, and she spent extra time on it. At the end she put biofreeze on it.
I drove home, and have been rotating it, and it feels so much better. In future if I get an injury, or pain, I will either be changing my massage date, or added an extra one.