Hi. I am sorry for all you are going through and the future surgery. I would talk to your pain doctor about this before you have it. They may be able to suggest some treatment to help prevent it from spreading and to keep you more comfortable. I know even my non rsd areas are extra sensistive since dx. I think your outlook and being positive is so great. I feel in the long run it helps in recovery. I am also glad you have wonderful family support.