Duras, now is the time to get aggressive with this condition. My undstanding blocks will give temporary relief and also can indicate or diagnose the condition as RSD. I'm vague on this because my wife refused them for three reasons. One is it is tempory and it can cause havoc if not done properly and can cause the spread of the disease. Also, overtime it becomes ineffective but it does give relief to many for a short time in most cases. I would have her visit the best pain specialist in Israel that she can find and through them gather all info on ketamine treatments. My wife, who has RSD, had this treatment (infusions and boosters) but here in the States there are several methods. My feeling is the more ketamine delivered in the early stages of this disease the better the results can be but not guaranteed. Germany does have an extensive treatment using Ketamine. My understanding it there was a recent death of a woman using the ketamine coma treatment causing this treatment to be on hold at the moment. My understanding there is an age limit on the coma treatment of around 50 and under but I could be wrong about this. I hope your mother well.