Vogon told me I was welcome to try anything in the medicine cabinet, so I placed two medium (2x3") Spenco 2nd Skin Moist Burn Pads side by side, taped 'em down and wrapped my elbow unflexed to get the most benefit from the moist pads and holy crap, the relief was so intense it make me light-headed for a few seconds. I'd like to pick up some of the large moist burn pads later.
(I've used Spenco's other 2nd Skin products for years. Their sport dressing and blister pads are the best thing to happen to blisters since duct tape.)