While I realize it can be difficult to explain situations without pictures, I suggest that you put more effort into your terminology. I'm still not clear on how the hoof wall will fall off. All of it? All the way around? Or was a resection done? Or is there other damage perhaps related to the cause of the abscess that means a portion of the wall is no longer structurally attached and that piece will fall off?
I'm always interested in hoof stuff, but I get nothing from this thread so far. Perhaps you might get a chance to get pictures of the hoof? And I would also be interested in the cause of such a terrible abscess if known.