It is not very common. It's former names are Reflex Sympathetic Dystrophy, Causalgia and many more. They keep changing the name but it has been called CRPS since 1995 to most people. There is no cure yet, but I do hope with all of my awareness and fundraising efforts that we will find one within my lifetime so that future generations do not have to suffer. Paula Abdul has it, but she also has wonderful finances and can afford amazing doctors and treatment. Thank you for the support and I hope you have a great day with lots to smile about :)