I had HBOT with someone who had a sympathectomy and it didn't help her at all - only made things worse.

I had thought they were the "old fashioned" treatment for RSD back in 2001. It's 6 yrs later now and I'm shocked to hear that someone is out there recommending such an "antique" treatment.

I would recommend a big - STAY AWAY from it and find yourself a new doctor that is using the most recent treatments(for example, ketamine).

Also beware of invasive treatments.

that's my 2 cents.
Peace and hope,
Lisa