Indeed, Hemp should NOT be discounted as it too has pain reliving properties
http://whale.to/a/hemp_oil_photographs.html
In fact, Chinamart™ sells a Hemp pain relief lotion that I'll use if'n I throw too many Sammys or Frogs. It is $19.88
They even have a Hemp Oil that can be used in cooking. (Same price) Both are in the "As Seen On T.V." aisle