You have my sympathies! I gave myself a case of carpal tunnel years ago (through my own stupidity, I might add). What helped me:
1. Rest: frequent breaks, shaking out my arms and wrists, massaging my forearms.*
2. Wearing a wrist brace whenever possible, including to bed.
3. Ibuprofen.
4. Stress-reduction: deep breathing, meditation, relaxation, even if it's for only a few minutes.

* Massaging and stretching are helped along if you've eaten about a half hour beforehand (complex carbs especially), because muscles need more energy to relax than to contract. Folks with rigor mortis would agree if they could.

Good luck, and take care of you...