If you hand has been in a splint
for 4-6 weeks then it is likely extremely stiff and the most important action to take now is to get your hand, wrist and forearm moving. A physiotherapist should be able to help you with this. Most hand fractures
heal within 6 weeks although occasionally a bone can go onto a non-union and continue to produce pain which should prompt you to go back to your Dr for an XRay.