"A fibroblast is a type of cell that synthesizes the extracellular matrix and collagen, the structural framework (stroma) for animal tissues, and plays a critical role in wound healing. Fibroblasts are the most common cells of connective tissue in animals.
Fibroblasts and fibrocytes are two states of the same cells, the former being the activated state, the latter the less active state, concerned with maintenance. Currently, there is a tendency to call both forms fibroblasts. The suffix "blast" is used in cellular biology to denote a stem cell or a cell in an activated state of metabolism.
Fibroblasts are morphologically heterogeneous with diverse appearances depending on their location and activity. Though morphologically inconspicuous, ectopically transplanted fibroblasts can often retain positional memory of the location and tissue context where they had previously resided, at least over a few generations."
Maybe by hyaluronidase turning off fibroblasts the cell memory is stopped. Then, while the body thinks that nothing is wrong in the area, it doesn't try to attack it with keratin or white blood cells thus allowing hydrocortisone and neomycin to work at full strength. Basically it is like getting rid of all the linemen of the defending team and giving the opposing team a clear shot at the quarterback.
Then, when the treatment is stopped, the cell memory is practically resetted because there is no longer an issue... theoretically speaking.
Like I said before, this hyaluronidase treatment shows lots of promise. In third world countries doctors know that patients don't have too much time or money for long term treatments and doctors don't have too many resources to begin with so, it is cure or bust in those countries.