@Harry:

Harry, you know, people are all different genetically. They have subtle, but different chemistries all directed by DNA.

Hence diagnosis of some disorders remains observational...and hence subject to interpretation, and opinion. Diagnosis in these cases, may really just be an opinion by the doctor.

The foods we eat in regular amounts do not have high amounts of nutrients in them. When you are sick or injured and have tissue damage, there may not be enough nutrients absorbed from your food to get to the periphery...that is why PN attacks the feet and hands most commonly first.

I suggest you take therapeutic amounts of fish oil or krill oil until you have healed better.

Also there ARE studies from Europe about using Vit C for RSD prevention. Some posters here even post about IV C for RSD management. In the past we had a poster Vic who recommended another antioxidant... grapeseed extract.
C and grapeseed scavange free radicals which are numerous after injury. They are inexpensive and benign with no side effects. I think they are worth a try in your case to enhance healing. The doses suggested for this were, 500mg a day or 1000mg a day for 2 months. A dose for grapeseed extract would be 500mg -1000mg a day.

This is just one study on the Vit C --there are several papers on PubMed about this:
http://www.ncbi.nlm.nih.gov/pubmed/19840748

Keep in mind that not all research or papers are totally honest also. There is much coming out about manipulation by Big Pharma and Device manufacturers slanting studies in their favor.
Merck went so far as to create a fictitious medical journal showing their products favorably and released it in Australia.
There was a doctor in California who fabricated post surgical pain papers in favor of Pfizer products. And a Japanese anesthesiologist who published over 180+ false papers.
Many drugs today were manipulated this way. There was a huge controversy among journal publishers not too long ago where doctors names were used without their permission on study titles of drugs, so that the papers would have more weight when used by drug reps to detail those products. This ghostwriting was pretty rampant at one point. Harvard had a huge scandal in their child psychiatry department over use of antipsychotics in toddlers! example here:
http://ethicalnag.org/2010/10/23/toddlers-on-drugs/

The human body seems to be resistant to labeling and generalizations. In the case for erythromelalgia, some patients have developed it out of the blue, or just after an exercise workout. An obvious injury lacking for them. So one really needs to remain open to other causes for a problem. Prematurely focusing and labeling something closes doors for healing, exposes you to unnecessary invasive treatments, etc.
Thinking outside the box may open a path for better healing for you. (doctors don't really "heal" you know. They objectify, label, and give drugs for symptoms. But they don't really heal, YOU heal yourself).