I fractured my wrist earlier this year, you don't mention what exactly you have done, but I was told I had sprained it originally - and they had x-rayed it. After 7 weeks I found out I had fractured my Scaphoid. It may be worth getting it checked again.
Once correctly diagnosed after 6-8 weeks in a splint it was healing very slowly, then I tried the following:
MSM, Calc Phos 6c, Symphytum 6c,
Clacium Magnesium Zinc, Comfrey Cream and Ruta Grav 6c
...and it healed after another 6 weeks.
You should be able to find them at a place that stock Homeopathic medicines.
Hope this helps.