If you're taking an anti-inflammatory, that can slow down healing time, as the body needs some inflammation in order to heal. I don't know how much or how often you're foam rolling, but if you're doing it too long if your body's not used to it or applying too much pressure too soon, you can actually inflame the IT band. You want to roll slowly, pausing and sinking into the sore places.

I had chronic ITB problems that were ultimately attributed to a poorly fitting bike. A combination of bike fit, acupuncture and massage ultimately cleared it up. In the short term, I would try ice and rest or at least backing off on the time/intensity of your workouts.