[UConnJulie]

Josh, are you stretching your hip flexors? Those of us that are prone to injury here need to be diligent in stretching them. Also, how are your glutes firing? Any signs of lazy glutes? I have found that those with chronic hip flexor issues are often masking a gluteal problem.

As for ice versus heat, if there are any signs of inflammation, I stick with ice. Physiologically they do very similar things, although most heating is so superficial that it doesn't provide the physiological response that ice does.