Diclofenac
"After a series of pain medications and even a course of prednisone to help with my costochondritis, my doctor decided to give this a try before seeking further intensive treatment. This is the first time I've had relief from any pain, and while not clearing it completely, it does a pretty good job of reducing it significantly. I'm only worried about prolonged use and haven't come across reviews regarding that yet. Would greatly appreciate anyone's view on that as well! Also, there is a coupon for $20 that you can download directly from the website, as this can be pretty expensive. Even with insurance."