From what I read, the modality only works if the right lasers are used for the right amount of time. Doidge's book mentions chiros using lasers and how they use them for a few minutes as an after thought , my neuro chiro was doing this and i called out bs on it.

The idea is to use them for extending periods of time for weeks to months on end. As we all know now, anything for PCS requires lots of time and lots of dedication. I think this can have helpful benefits if prescribed by an expert aka: Dr. Khan the man who started the field then just any old Chiro.