Alternating mouse use between hands:
Whilst people often default to using their dominant hand when operating a mouse,there is good reason to alternate between hands or always use the non-dominant hand.
This may provide a more efficient work set-up and reduce the risk of discomfort, pain and injury.
For mouse use with the non-dominant hand, the mouse should be repositioned to the opposite side of the keyboard. It may also be necessary to adjust the control settings of the mouse, which can often be achieved through software. These settings are often found in the ‘Control Panel’ under ‘Mouse’ control settings.

And remember- Don’t squeeze the mouse!