I would try PROMAXOL to reduce the pain and help healing to begin. PROMAXOL contains the stronger LM potencies. After improvement is seen then you can switch over to ARTHRO-IONX. In addition it is helpful to give Canine Probiotics with each meal and Omega 3,6,9 daily. The oligotherapeutic mineral base found in the IONX products helps the body to better utilize the other nutritional substances given for a synergistic response and faster healing. Also be sure to give sufficient fresh water that is free of chlorine and fluoride.
I would also encourage you to find a veterinary chiropractor. The alignment in the body is probably off due to the fall. Improper alignment can also impact organ function with time.
Please let us know how you progress or if you have any other questions.