Before using linament you should have an evaluation
of the knee
to determine the nature of the pain. I was developing severe knee
pain, and used linament, and the problem became progressively worse, until I could barely walk. The problem was fluid accumulation. They withdrew a large (so it looked) quantity of fluid with a hypodermic needle, and "poof"...the pain was gone, never to return. That was seven years ago. When the fluid is taken out they look for evidence of blood.