If a dev could clarify it would be great, but the user base can get creative with their answers as well. But as a rule to avoid an over-abundunce of silliness you can only give one joke answer and one serious answer in your post, beyond that you can debate how the mysterious powder in a bag is used.
Personally, I think you just rub it in the wound.
Or burn it like insence and inhale the healing smog. :biggrin: