I'm so sorry...this sounds awful. I had an ingrown nail on my CRPS foot...but that was back when it was "just" in my ankle and the podiatrist did the nail removal in the office. Pretty sure that's when the CRPS spread to my foot...but it was awful. I agree that they should be cautious about it and hopefully after the podiatrist's recommendation you can get the care you need without too much fight. Don't want it to turn into something worse. So sorry for what you are going through.