When you work on a computer all day long, you will probably deal with some sort of issue related to repetitive motion at some point. When it hits you, I would advise you to take action right away to prevent any further injury – you may end up not being able to work and there goes the income.
I have a bit of carpet tunnel and as soon as I feel it starting to kick in, I put on one of my Mueller braces like this one pictured. It provided support but I can still type on the keyboard (in fact I am wearing it now). This is the Mueller Hg80 Wrist Brace Support.
I also have a smaller one that I change back and forth into but without them, I would be in trouble. I do recommend the Mueller braces and this one even has an antibacterial barrier to prevent odors – that is pretty cool. If you wear them a lot, it matters. Of course, I have no odors – no.