Stretch. Extend the affected arm, put the fingers straight, place the hand on a wall (or use your other hand), and gently stretch the wrist up (toward the back of the hand) as far as you can. This was incredibly helpful in easing the after-pains from my carpal tunnel surgery. There are also elastic band things with a pad that goes on the forearm that ease the symptoms. As far going to the Dr. immediately, do so; I didn't until I couldn't take it anymore, and it only took more 6 months of trying other treatments before they decided I needed cut (of course, it was workman's comp, so the company had their Dr.s saying it wasn't CT, the CT wasn't bad enough yet to need surgery, and wasn't their fault, anyway).
Damn, Chuck - that's ugly!
Peter