**Wrist supports aren't that much help when using the computer. I know. I have them, too.
What I do is hang my hand down and shake it around a bit. It helps relieve it some and stops the tingling for a few minutes. I just keep repeating this while I'm working. I've also found, for me, that a regular mouse pad helps more than the ones with the gel in them. I know the gels are supposed to help, but I've found I can actually position my wrist to a more comfortable degree without it. Also, an anit-inflammatory medicine such as plain aspirin helps. When all that fails, I just find something else to do for a bit until it calms down some. Generally, when the condition is to the degree you describe, about all that really helps is surgery and even that's not a sure thing.

I feel for you. I've had this for some time and now RA ihas joined the party. Slows my work down alot, especially on rainy days like today.**