Ligament rupture of right hand wrist.

Good morning sir!! I had a fall on 26 July 2018 from the stairs. My right hand immediately touched the ground and all my weight was on it. As a result there was sharp pain in the hand and immediately there was swelling. I went to the Dr who asked X-ray to be done. The report was no fracture, but the Dr still put a cast to fasten healing and prevention of further injury. Also prescribed some medicines which I took. On August 11, the cast was removed and another X-ray by another Dr again revealed no fracture but ligament rupture of the wrist. He also prescribed some medicine and warm water soaking and applying the D.F.O. ointment & crepe bandage. Today i.e. on 20 August also, the swelling and pain is still there. Sir, my questions to you are- 1. Can broken ligament grown back? 2. Do we need to take an MRI? 3. What is the treatment for broken ligament? Can it be cured through medicines, taking protein supplements, warm water soaks, physio or surgery is required? Kindly help me. Regards.