Hi,
Sorry for the crps diagnosis.
Like the others said get to a pain mgt. doctor ASAP. Get neurontin (gabapentin) or Lyrica and again like the others said Cymbalta helps. I got to where I now only needed the Oxycodone for physical therapy, but my doctor switched that to Nucynta which is also narcotic but is more tolerable for me. It targets the "burning" CRPS pain better and I don't feel so "drugged" in my head (if that makes sense).
I hope you have some support it helps, but you must be your own advocate too! Don't give up, firmly yet politely assert that this is a serious condition.
Try not to use ice - it's bad for CRPS.
Youth and a quick diagnosis will be on your side to hopefully get this into remission.
Do everything Brambledog and the others said as well. Every CRPS patient is a little different but the advice here is usually right on target.
Hope you get relief soon!