[sanityinc]

In my experience, stretches and foam roller are both ways to alleviate the discomfort, but they don't fix the underlying problem, which is related to running form and specific muscle weaknesses. When the gluteus medius is weak, or when the lower leg is rotated inwards slightly by the arch flattening, the IT band ends up under excessive tension, trying to keep everything in line. The long-term fix for me was to strengthen my feet to reduce pronation, to do lots of deep squats, and to focus on "firing" the glutes while running.