MSM is an anti-inflammatory; it won't do anything to heal you -- it may work against you as inflammation is necessary to the healing process. It is essentially expensive aspirin.
If you are using glucosamine, make sure it is of the sulfate variety; not HCL or N-Acetyl. Use glucosamine a 2 grams 1x per day.
You would also do well to stack it with chondroitin sulfate as chondroitin works through a different biological pathway and seems to be as, or more, effective than glucosamine (even with a low bioavailability of 14 percent). Chondroitin at 1.5 grams 1x per day.
Niacinamide is also helpful to the healing process. 250 mg 4x day.
Hydrolyzed collagen is helpful at 10 grams 1x/day.
If your damage is not too severe, it will take 6-8 weeks to really notice these compounds working. You must be careful to rehab, not continue to pound, the afflicted joints as well.
There are other things out there that might offer benefit, but in my book, these are the top 4 (OTC supplements) if your joints aren't damaged beyond repair.