Amy I can relate to fearing to do a treatment cause of fear of getting worse. I feel the same since it has happened. I guess for myself I just try to get as much information as I can about the procedure,sometimes get another opinion,and weigh the pros and cons. I am back in a really bad spot and I know I need to try something again and I am looking into ketamine. Many major hospitals like when I was at Cleveland Clinic or like you said at Mayo don't do ketamine infusions so they don't discuss it much. That is what I have found. Many hospitals or specific doctors have what I call their "thing" a and they feel a specific treatment is what is good for rsd. They look less at the individual and more at it just being rsd. I think that is wrong because though we all share the common rsd horrid pain we all respond different to treatment. Anyhow if you want an email buddy I am here. Hang in there and hold to hope