Have constant right knee pain for the last two years. Two years ago was prescribed nucoxia 120 with mega free flex. There was relief. But once nucoxia was withdrawn, the pain returned after a week or so. Two months ago all medication was stopped. Things were okay for a while, then the pain returned leading to a slight limp. While visiting mumbai, consulted an orthopaedic who prescribed enzoflam for a week with collar flex. It produced pain free walk. But once enzoflam was discontinued, the pain returned. What should I do now?