No, i just used if to exercise with when i was recovering in from the problem. They are basically just pieces of rubber varying in elasticity, so you progress through them as you recover. Im fairly sure that you physio will have an unbelievable amount of them stashed away somewhere, so just ask!
Something similar a while back, wasn't as severe as yours though. Whilst recovering, i made a thing of wearing the most supportive shoes i could find, just to keep every thing in line; making sure i didn't let things heal in the wrong place. Even got to the point where i wore walking boots out and about! I think doing this also stops alot of discomfort, as the achilles takes alot of stress from twisting and turning in everyday life. At the end of the day though lots of RICE is the only thing for it.
I suffered from iliotibial band syndrome for a while, which gave me great pain. Like you, i went to the physio and had it confirmed that it was IT band problems. I tried the rolling, also swimming which helped a little bit. For me though, the biggest help was using resistance bands; they really strenghtened the muscles surrounding the band; after a while the pain was completely gone. I guess everyone is different though, but the resistant stuff worked wonders for me.