Hello and Welcome Larriva,
I am sorry to hear that you developed RSD after battling through chemo and radiation. It takes grit and determination to get through all that.
You will find a supportive group of people here and a lot of info about different treatments that those of us on the RSD board have tried. I hope that you find something new to consider. There really are a lot of options to increase your comfort.
You'll find the RSD/CRPS board here.
http://www.neurotalk.org/forum21/
Also try the Search feature at the top of the page to help look things up.
Come say hello on the RSD/CRPS board and jump in anytime.
Sending thoughts of healing and comfort,