I had a bit of wrist pain too earlier. I stopped resting my entire hand on my wrist and it stopped hurting in a few days. I raise my hand up over the keyboard like a magician saying abracadabra or a DJ with a turntable. It's a bit weird at first and your forearm might hurt after a bit but not only has my wrist pain disappeared, my typing speed seems to have improved. The forearm pain is the good sort (like after an intense workout) from the effort of holding your hand up with no support from the table and gradually reduces as you get more used to typing this way.

And I completely agree with the other comments about the mouse causing wrist pain. I have learned more and more keyboard shortcuts to keep myself from using it too much.