I don't have RSD , but I did have a few sessions of fluidotherapy for my RSI.
I didn't care for it at all myself.

I didn't like having to lean into the "box" to get my arms inside of it..
and it didn't do a thing for my arm pain a total waste of time for me and made my neck hurt due to the odd angles & leaning to reach inside.

Little warmed air with particles fly around and hit your skin- if your RSD has hyper sensitive skin ..??? I just don't know how this would really benefit you.

All it did for me was annoy me!

A little about it-

[Fluidotherapy is a therapy often used to relax localized areas for conditions such as arthritis, circulatory disorders and certain sports related injuries. The concept of fluidotherapy is based on a dry heat treatment that uses pulverized organic material such as walnut shells or grain husks. These materials are suspended and circulated in a heated air stream. The organic material of the fluidotherapy radiates heat and generates stimulation and pressure to certain areas of the body. Fluidotherapy is usually used for upper extremities such as the muscle and joint structures of the hand and wrist. When the hand or wrist is immersed, the warm air is forced from the bottom of the machine through particles forming an air-fluidized bed. Fluidotherapy has the ability to attain higher degrees of temperature than other methods of heat application. It is important to have the materials in the machine circulate at the correct temperature, speed and density. This type of therapy also performs a soft tissue massage. Fluidotherapy serves only as a temporary relief of pain. It is not a treatment used on a long term basis. Fluidotherapy increases circulation to an area; therefore it may make tissue more flexible to assist in improving range of motion. ]
more- http://www.ersbiomedical.com/fluidotherapy.htm


the machine looks like this images -
http://www.google.com/images?q=fluid...w=1440&bih=772