I have been, for quite some time, getting back pains from serving too much or too hard, and the problem hasn't gone away now that I'm playing a match or two a week. The pain goes away with a massage (I really dislike them... I'm slightly ticklish. ) or Icy Hot, as far as I have experienced. My question is, does anyone here know if Icy Hot, or an Icy Hot patch, is allowed to be applied before a match, and used preventatively during high school matches? I figured I'd ask my coach what he knew on the subject, but I also just wanted to see what kind of feedback I got here.