http://en.wikipedia.org/wiki/Fire_cupping

http://www.cbsnews.com/stories/2004/...in628788.shtml

Have someone professional try this. However, my husband is not a professional and did this last night. I can say that I had a good remainder of the evening - my knee was still in extreme pain but my muscle cramps/spasms stopped and gave me a break.

Hope this helps.