There are a few things I can suggest:
It's a good idea to visit a doctor and see if you have any serious problems with your shoulder. Also if you had really bad fall you might have some broken/cracked ribs.or internal injuries.
Under "normal" circumstances I would recommend hot my favorite hot water bottle over GB, hot bath and may be salt(sea salt) compress over shoulder area.
I wish you to get back on your feet and still insist: it's a wise move to see a doctor about you accident.