Sorry I wasn't much help. Just trying to be logical about it.
Thanks for your valuable answer
I admit that I know nothing about Bells Palsy... However, it's very possible that you were not completely "cured" the first time... Just all the symptoms went away temporarily. If Bells Palsy is like majority of "bugs" in life, a recurrence or relapse is always possible. It couldn't hurt to go back to the doctor even if that's not the problem anymore, right? When in doubt, go back to the doctor. I hope you find relief soon :)