I've had this before. It was minor, it went away with wrist braces. But, it hurts like hell! The best medicine is prevention. To prevent CTS:
- use a trackball or Glidepoint or Eraserhead or tablet instead of a mouse
- Get a Microsoft Natural Keyboard
- Don't type for long periods of time
- If you have a normal keyboard, try putting it in your lap rather than on the desk in front of you.