My foray into the minefield that is chiropractor management of bad backs is that you will be seeing them again and again.... ad infinitum.
The recommendation always seems to be for 3 visits per week for a period of quite a few months, the treatment only takes minutes, although the bill is hefty for such a short period of time.
Then even when you complete the series, there is always the constant maintenance visits that are recommended.
I am not convinced that time, mild stretching, water walking etc would not yield the same results.
During a different period of back pain I did try a remedial massage (1) by another therapist and that was brilliant.