In my specific case, 4-10 years ago, the back of the hand, below the pinkie would get unbearably painful, after a set or two, and then sitting out a set. Shooting sharp pain forced me to go home, rather than try to warm up for the 3rd set.
I tried squeezing my wrist joint, and instant pain relief. So I started warming up squeezing my wrist between points, and it worked. Use thumb and middle finger. Try it.