@BanjoBill - Sorry to hear about your shoulder. I have a similar injury from tennis a few weeks ago. I tried the hot and cold packs and that helped to relieve the pain, temporarily, but it wasn't lasting long enough.
I ended up going to the doctor because it was still sore after a couple of weeks, and I'm very glad I did.
I don't like to take medication for pain if I can avoid it, but sometimes it's worth it. They gave me some anti-inflammatory drugs that really helped me through the day. Now I can really stretch it out and it's starting to feel a lot better.