Well this article has been sited on this forum many times and most of us have tried tacrolimus. but that did't really help most of us.  I think "#66568" is right.  It would have been sheer coincidence that the lady in question, got cured while  applying tacrolimus. 

 I don't recomend steroids for anyone as it does more harm than good.  Let the lip heal naturally.  just eat healthy, exercise and don't pull forcebly or don't pull it at all.