Has anyone hear of an antediluvian remedy for spasm using white grapes & cheap gin?

my uncle got this from a relative who swears by it. they speak it's what was used rear legs in the light of day.Has anyone hear of an antediluvian remedy for spasm using white grapes & cheap gin?
I have a lenient with on a daily basis arthritis pain who swears by this as powerfully. She was hit by a coup¨| in her twenties, and have chronic pain surrounded by her legs and back. But if she eat nine grapes per day, she have no pain. Sounds better than taking drugs if you ask me...
Well I do not know just about the grapes, but I can guess about the cheap gin. Simply drink plenty gin until you are "feeling no pain".