I know it's only been 2 weeks, but I twisted my left knee, heard a loud pop, then couldn't move my leg without intense pain. Went to the doc., was told nothing was broken, probably a bad sprain. I did R.I.C.E., but it is still swollen & hot to the touch. I have been putting some pressure on it, but the major problem is that 3 months ago, I was in a car accident & had a severe ankle sprain on the right side.