pain
"As an avid runner, I suffered a painful IT band (iliotibial band) strain on the outside of my left knee.  Went to the doctor after a week of pain and not much healing taking place to make sure I didn't suffer any major ligament damage.  He diagnosed the IT band issue and gave some samples of Flector Patch and as more of a comic relief, stated that "these really shouldn't work, but actually do".  Was a little skeptical at first, but these patches do provide wonderful relief.  Four patches later I am feeling much improvement in the mobility of my knee strain.  Definitely worth a try."