I found this intresting site last night while surfing around. They have a program that you can download and run on your computer that sends frequencies out of your computer throught the speaker. It's very low voltage. They also have a list of frequencies you can enter to target any problem.
I think you are supposed to hook some leads up to the speaker and touch the wires to your skin or something. There is not much documentation there.
If someone can figure this out then please post a reply on what to do with this program.