About a year ago I had the same problem and decided to do something about it. I phoned my son, a GP, and told him about my purple toes on my left foot. He was sure that it was nothing to worry about but I should let my GP check it out. I phoned my GP and she was sure that it was nothing to worry about but I should drop in and see the locum that was taking over from her that evening. I dropped in to see him and he was sure that it was nothing to worry about but could I pop into the local Royal Infirmary to see a consultant. The next day I did and he was sure that it was nothing to worry about but he’d like to run some tests. I stayed in overnight.
After the tests the next day, the consultant told me that I had acrocyanosis and that it was nothing to worry about, it just looked bad. He had been put off since it is usually seen on both sides of the body and I only had it on my left foot. I now have a slight blueness on the toes of my right foot.
Well before this I had bought a Circulation Booster, which sends electric currents through both feet and ankles, because I had swollen ankles. The ankles are not swollen any more but I do still have purple toes. I don’t know whether the Booster is responsible or not. Best of luck and remember that it is nothing to worry about