Just a thought Nigel,

You might benefit from a consultation with a new doctor. None of the long list of docs I have seen, even the ones who I would characterize as less informed, had this treatment on their list for CRPS.

The most important thing for me though was that within six weeks of my diagnosis I myself had the list of dangerous and risky procedures down pat and knew the ones to avoid.

From the kinds of questions you are asking I suggest two things. Spend more time doing your own independent research. If you are depending only on responses from folks here to guide you with you uncertainty with your physician it is time for a new doc.

One last piece of advice-making a decision to undergo a treatment that is highly controversial and can pack a punch in terms of risk may be a function of desperation. Magical thinking can get CRPS patients into very big trouble.

Hope better days are ahead for you!