Question about RSD

Hi:I am really hoping someone can help me, in October I broke a bone in my foot, and I am still having unbelievable pain, my doc sent me to a pain management clinic because they both think I have a mild case of RSD, the break has healed.
I have had 3 surgeries on this foot, and in the past they have thought I’ve had RSD and that is not the case, they want me to try acupuncture, does this really help with RSD. I have tried pain patches, medicines, sympathetic nerve blocks, all kinds of things with no relief.
I have an appointment on Monday, and I’m terrified, any information that can be provided on RSD would be appreciated.-KolleenJust started wearing sneakers today, have been in an aircast since injury, and the sneakers cause the pain and swelling to increase.