i've had several years of various training.. mainly JKD type stuff. i'm comfortable standing and using hands and feet, though i know absolutely nothing about groundwork. i'm going to start looking at various classes in the next month or so. i've settled on BJJ, but i've got one problem. several years ago, i had two surgeries on my hand which have left me with permanent nerve damage. basically, i can't have any type of contact with the outside of my right hand (to the point where shaking hands is painful) is there anything i can put on my hand to help against the nerves?