I've never used any of these creams before, but some of the players would use it before the game to loosen up there arm. But, then again, some of them also dealt with pain in there arm due to poor mechanics.
One that I've been looking into is a product called Flex Power. You've probably heard about it if you've seen some of the members on bodybuilding.com mention it in there posts.
Also, USP labs Cissus RX seems to be a pretty good product; in conjunction with flex power, could be very effecting in alleviating pain, and healing it.
I plan on buying these products in about a month.