>>12037025not the tendon , but the sheath, so you have that wrong to start with, how many other things could yet get wrong?
anyway, i had de quervains tenosynoviitis pretty bad, managed to get rid of it after 3 months without surgery by : - immobilising the wrist and stopping doing what was causing the injury (using a mouse)
so stop injuring yourself. get a different mouse if its that. whatever it is stop it.