Have you tried it?

(edit)

Consider replacing your standard wedge mouse with a trackball.

Not one of those dinky Logitech trackballs, by the way.

I haven't had any issues with it, though there definitely was an adjustment period when I first started using a trackball.

Kensington and logitech haven't really improved their trackballs.

There's a few new elecom models for your fingers and a new startup has almost got a new one ready for sale.

https://www.gamingtrackball.com/pages/how-to-buy


Mouse design itself has stagnated with the same stupid shapes and silly lights and wonky sensors claiming ridiculous DPI that is fake.

Stretch, stretch, stretch and just in case you forget; stretch!

Whenever you're idle, thinking about what to type next, sitting at a loading screen, massage and stretch your fingers, hands, wrists and forearms. You can use the desk or the wall or anything as leverage if you need.

Whenever you're out exercising try to incorporate something to include those trouble spots. Resistance bands are a great start.

I had the same problem. I'm not able to use mice any more. I use a thumb operated trackball.

I use an old wired logitech trackball. They don't make them any more, unfortunately, so they cost a lot on ebay. Logitech only sells a wireless thumb trackball now.

There are some other thumb trackballs from Japan or China, but I can't comment on their quality and don't remember what they're called.

Other than that, I have mostly switched to using a controller whenever possible and using a program that converts keyboard and mouse input to controller when the game doesn't support it.

I suggest the thumb trackball first, but I've come to like playing with a controller more now. It's just more comfortable.

Stop if you hurt! You may need to stay off the mouse for days or use the other hand.

Exercise but wait until your wrist is better before doing any more than the lightest. I use a rubber band, finger flexing and grip strengthener myself.

If it gets bad, putting on a hand support before going to bed can help.

If you eventually need/want to control the mouse/keyboard with the controller, there's a small program called Gopher that do it. Steam does it also. I've used both on the tablet, before Microsoft implement the touchscreen trackpad.
Another option are those "single handed controller" joysticks, usually the firmware include mouse/keyboard functions. I have a el-chepo bluetooth one that bought on a local shop for 1.5€, it's trash as expected but if the implementation is good, the product may work very well. I've seen some over the years that looked quite well made.

Sorry all, I took a short break away from the computer to rest my wrist. I certainly did not expect so many actionable suggestions like adjusting my chair height, relearning my hand/arm/mouse movements and using a trackball/controller. I'll be going through each and every suggestion for days. Time to give Amazon some money :(

I agree! Same happened to me years ago and like an idiot, I did *not* stop and got worse: to the point that it took one month to recover and it hurt so bad just to hold a fork! Have since switched to an ergonomic mouse, but, the best thing to do (after you've healed, naturally) is to take breaks and exercise your wrist. Now when I game, I program a timer on my phone for 45 minutes, then I take a 15 minute "stretching" break, rinse and repeat.

AGH HAHAHAHAHAHAHAHAHAHAHAHA

Wish my problems were that easy to fix

Aww... A sore wrist

Meanwhile I sport

Asperger's Syndrome
Brain damage 5% all the way through
Irritable Bowel syndrome
Fatty liver disease
an ruptured appendix (8 years of agonising hell) felt like an ICY WHITE HOT COAL STINGING AND BURNING
a busted shoulder socket (happened at 13)
a screwed leg and hip (happened at 27 and caused the ruptured appendix) outer part of leg PERMANENTLY NUMB
feet that swell up like a balloon (from fluid retention + hip maladies)
skin on my hands that CRACKS APART and BLEEDS
and a red spot that continually crusts over on the back of my hand

Note: My leg is numb and when I stand up the numbness grows from my leg to the entire lower half of my back and if I stand any longer then half an hour that leg starts to get RED HOT like boiling water being poured onto it

But Aww... BooHoo an aching wrist.

I was gonna say the same thing but you beat me to it. maybe that or carp but I'm sure its the first one. I do get that myself cause my desk is higher then my chair and I need to fix that shit asap.

I finally broke down and picked up a cushion for my wrist - a small bean bag - that elevates my wrist. The ache is gone. I have a similar one for my keyboard.