"i had no clue what this stuff was. my grandma has been using it for her elbow. i was having a &quot;blonde&quot; moment i guess cause i was thinking how can a gel work when her pain is under the skin? well i&#039;ve been having horrible knee pain, i&#039;m seeing a knee specialist this week. i picked up her tube and thought i&#039;d give it a try thinking it would do nothing. when i got up out of the chair i was amazed! hardly any pain at all. i looked back at the gel and thought &quot;no way&quot; this has got to be in my head. so i got on the computer and decided to research this a little, i think when i go to my specialist i will ask for a prescription for this. however i think i may have used just a little too much, oh well!"