Can 5FU/kenalog injection break down nasal cartilage grafts?

I had a revision rhinoplasty done 1 year and 3 months ago, involving a rib graft to create a supported tip. I also had an in-office touch-up several months ago to add septum cartilage grafts to the alar rims, to fix the slight alar retraction I had as well as a permanent suture to lift the tip. I'm interested in getting my first ever 5FU/Kenlog injection to alleviate fullness in the supra-tip. Can this solution cause the tip graft or alar rim grafts to deteriorate? Any impact to the perm suture?