I crossed my left leg over my right in some way that my right knee cap did not like at all. There was immediate discomfort over the right kneecap. I took my PanAway out and rubbed it on the knee, and, within sixty seconds, the discomfort was gone. In about an hour, the discomfort returned, much less intense. I repeated the application of PanAway, and the discomfort left almost immediately and did not return.