Basic exercises and stretching can help with IT band problems
Here's a link to a
we use on YouTube for patients.
Also focus on strengthing glutes and reducing any adductor (inner thigh) tighness since both of these issues add to strain on the IT band and the development of knee pain
Foam roller is helpful - personal favorite is the GRID foam roller by the folks at TP Therapy. Compact and sturdy.
Hope this helps!
-John