To my knowledge, there's none. There was one practicing in Ayala Mall / cebu city couple years ago. If you find one on this island, please let me know
I know of a physiotherapist who, whilst not a chiropractor, did help me with back issues I had some years ago Dr Lynn Olegario, is the wife of orthopedic surgeon Dr Danilo Olegario. She has her surgery located on the right side down the lane after you enter SUMC. More recently, and ongoing, I have had excellent advice and service from her husband at ACE on a much more serious knee injury.
Jim Pardis has been practicing at the Ayala Mall ( lowest level) for many years. I have been very happy with his treatments and try to see him whenever I venture to Cebu.
How many days is a course of treatment? Obviously it may depend on the problem, but is this (as with my osteopath in the UK) something that takes place over a period of several weeks?