I have an extremely bad stress fracture in my tibia and have been taking 2 Ibuprofen (only once a day now), for the pain. It works great. I pretty much feel nothing when I walk unless my little 9 lb Chihuahua decides to step on it. Then I jump in the air and scream like somebody just whacked me in the leg with a steel pole. But my question is, how does it work? I didn't want to use it for a while because I felt like it was just masking the pain. I was very ignorant to it. But after my mom explained to me that it's easing my inflammation and THAT is what's causing me pain, I'm starting to think differently. So, is the main problem not necessarily my bone and really the muscles and tendons, etc. around it that are inflamed? I'm just really confused. The doctor said to call and schedule an MRI by the 10th if I'm still having pain, but I can't tell if I am or not because I've been taking the Ibuprofen. I know if I don't take it I'll most likely have pain but once I do, I'm pain free for up to two days. Can somebody explain to me what's going on inside my leg? Is there a doctor in the house? Hahaha!!