If you sit at the computer constantly, you should setup your work environment more ergonomically; set up the chair and monitor correctly, and invest in a good keyboard and in a good mouse. For the keyboard/mouse, decide what's best for you, try several if you most, read reviews about them, and then make a good decision that will help you enhance your life and your productivity.
You have to bear in mind that the good old keyboard and mouse are the devices you use the most among any other device, even more than the tv remote. Most people use a keyboard/mouse for about 8 hours a day and 5 days a week. This is a lot of time, predominantly if you're using a shameful keyboard/mouse.
I know that countless people use the included keyboard/mouse that comes with new computers, and at their job, they just use the keyboard/mouse laying in front of the monitor, and never think much about it. However, you have to realize this is not necessarily best for you, and in most cases, these will be mediocre that may cause you carpal tunnel syndrome and health problems in the near future.
As well, most people will use whatever keyboard/mouse as they say "it does the job", without realizing than a better keyboard/mouse, ergonomic or not, will help reduce the risk of injuries and help them become more efficient and productive.
Honestly, you should consider investing in yourself and in your health. Don't buy the cheapest products, don't buy just any that "will do", don't use the mediocre keyboard/mouse that comes "free" with most new computers.
As well, try to type like playing the piano, keeping the wrists lifted and fingers gently curved; do not rest palms while typing.
Another quick recommendation is that if you're right handed and use your mouse with your right hand, try switching it to the left side of the keyboard and use your left hand for the mouse. It will take a few hours to master but it will be worth it. Your mouse will be closer to the neutral hand position compared to the right side and right hand. Do not switch the mouse buttons, use your left hand's index finger to click the left mouse button, this doesn't show anywhere but trust me, is an easier and better way. If you're left handed with the mouse at left, move it to the right side.
Also, try to avoid painkillers while working, pain's your body's way of telling you to quit abusing your hands. Instead, install a software that assists in the prevention and reduction of rsi or cts.
I hope this helps everyone in our recovery/prevention of cts,
keep taking care of yourself.
"from those that are given great tools, great things are expected"