Well poop. I am sorry to hear your edema is so resistant. This is probably a redundant question you have already had worked up but I am assuming they did a thorough vascular work up including Venous CT or MRA of the leg and abdomen? There are a couple of rare compressions that can occur in the abdominal area, especially in women, that contribute to one legged swelling. Are they certain it is all CRPS? If your docs are not a hundred percent sure of the cause it might warrant a look see considering the severity of your symptoms.