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.