Well I excerpted a few lines from the web page BUT it came from a site called yin-yang colonics. I am not sure this is something that you would want to pursue.
Raindrop Therapy Technique
What Oils are used
Customizing RDT
Other Uses for the Oils in the RDT
Scriptural Basis for RDT
What is the Raindrop Therapy Technique?

Raindrop technique originated in the 1980's from the research of D. Gary Young working with a Lakota medicine man named Wallace Black Elk. It integrates massage, utilizing the power of essential oils in bringing the body into structural and electrical alignment
Raindrop Technique is based on the theory that many types of scoliosis and spinal misalignments are caused by viruses or bacteria that lie dormant along the spine. These pathogens create inflammation, which in turn, contorts and disfigures the spinal column