absolute. In the end it's the only way we can deal with all the things that aren't in our favour. talking PC, if you haven't already, check out vertical mouses, since i switched for them it made it a lil' bit better. Of course, nothing replaces workout. These are two exercises i found i do when things get rough:

This one i usually also do finger by finger.

remember, to never go to deep into pain, and it's ok if the movement isn't wide. do them slow, really slow. watch out that the wrist is straight towards the fingers.

I hope it's of some benefit to you.