Hi,
i had two surgeries on my left knee. The first to cut and repair the tear, but did something stupid, and had to have the rest of the cartilage taken out a few weeks afterward. I was off work for around 6 weeks. I had quite a bit of pain for a little more than 6 months. Doc gave me a few cortisone shots and after a year I didnt have that much problem with my knee. But that was in 1989, and not sure how they do things now.
You might want to try rice, first, if that dont help go see your doctor. He may be able to check and see if there is imflamation, and give you anti-imflamatories or a cortisone shot.
Good luck
kim