In reply to sharptrigg:
I had both wrists released by open surgery, and I'm sorry to report mixed results.
With both of them I really caused problems by using them too roughly in the recovery period.
I was told to start using them gently and I would be guided/limited by pain. However under very light use I really damaged them causing months of inflammation and pain. I have heard of other similar cases since. As a climber you are simply able to put more force through the system than a normal person-and damage the surgery site-so be very careful and don't lift more than a pint for 6 weeks.
They have improved since then (2years) and are just a little tender and stiff around the scar. CT Symptoms have almost completely gone. However the long lasting inflammation 'caused' my duptyrens contracture to worsen significantly, leading to stiff scarred hands, although I can just about still lay them flat on a table.
My carpel tunnel symptoms were far worse after climbing, especially after trips. With me, I was getting to the point where surgery was really needed.
But to a younger me, with light symptoms I would say
"back off a bit, let it settle down. If you have surgery you'll be off climbing hard for 6 months anyways, why not try a couple of months break from the activity that is aggravating it."
Surgery may well be the best path for you but do consider it a last resort. I presume you stretch really well after climbing and have tried night splints. Both worked fairly well for me.