Very infrequently I have wrist pain, so I stop playing for a few days and wear one of these...
https://www.boots.com/boots-advanced-adjustable-wrist-support-10172868

So maybe some rest and one of these would help you out?...
https://www.boots.com/neo-g-easy-fit-thumb-brace%E2%80%93one-size-10231549