How many times a day and for how long each time is one supposed to use the foam roller for IT band issues? Also, would it be helpful as a preventive measure to use it on the leg that doesn't have the problem? I just attempted going for a run and about 15 minutes into it I started getting the pain again so turned around and walked home in disgust...I admittedly haven't been so good about stretching/rolling this week as I have been crazy busy.