Hello Spiritscript.
I am so sorry you are going through this. For immediate relief, so to help you think straight, can you take a hot bath? Although it is a short-term remedy, it can give immediate relief. Even if it is 30 minutes, it is something.
In terms of coping, I don't think you should HAVE to cope until your next appointment! I think this is an emergency. Can you go to your local ER for help? Can you get your appointment moved up? Waiting that long is absurd in your condition.
Why did you have to stop the Oxy? Can't they increase your dose to a stronger one? I do not understand just stopping a medication. Do you feel an increase in pain from being without it?
Everyone her is here for you. If my suggestion does not help, maybe another RSDer can suggest something.
I'm saying a prayer for you.
Kind regards,
Morgan