As a Left handed person living in right hand world I had to learn to use both hands. I use tools with both hands,
use a mouse with both hands, which does reduce the strain. John
I first had problems in 1997 and it felt like carpal tunnel was for sure on it's way; I went out and bought an ergonomic keyboard and a plastic thing you put your feet on (changes the position of your lower back) and it corrected itself very well!
However - 2 more things of interest - I've had a laptop for 1-1/2 years and am just in the process of hooking up my "old" ergonimic keyboard. It was almost brand-new (a replacement for the original I had bought) when I ended up with a laptop instead.
MY BIG IDEA OF INTEREST, THOUGH, is USING BOTH HANDS FOR THE MOUSE!
When my right hand was in a cast from the first week of August (2 years ago) until the end of November, I learned to use my left hand for the mouse. BECAUSE OF MY PAST INTRODUCTION to the pain of carpal tunnel (or whatever was going on that hurt so much in 1997) I didn't go back to my right hand afterwards.
It seemed to me my right hand had so much more to do in all areas of life, that it was a good benefit to put some major arm use onto my left. Now I go back and forth when I need to, when my muscles get sore on one side, I switch to the other hand and, as a rule, use the left hand anyhow. I feel it takes a lot of pressure off the right side getting all the stress. It works wonderfully at dividing up the physical stress. I'm quite adept at being ami-dextrous (use right for some things, left for others) but it was hard to learn to use my left for the mouse - now it's great! It's a good way to confuse your friends, too, when they see your mouse on the left side
I think it's a MAJOR SECRET that would help EVERYBODY take the pressure off using one hand for "everything".
"They say" it's not good for your brain to go back and forth but I've always (ie) eaten with my right hand, throw with my left etc. and have never had any problems (50 years worth) and I have a brilliant younger brother who was a sports hero and is now a specialized surgeon who is also like that so I don't think that saying amounts to anything