I don't know if you have any personal RSD experience but everything hearts if you try to touch the affected limb. I was not able to put a shoe on my left foot and was jumping on crutches and so on. You are right the capsaicin patches available here in the US do not work. I tried them but I was not talking about those = available here. I agree though, if it concerns a child it should be consulted first with an experienced professional (whoever that might be). The prescribed capsaicin cream worked for me though as a supporting therapy, that's why I asked pharmacist, when in Europe, if they have anything similar. And they did and works well for me = I can walk again.