Some seem to think that "science based medicine" is incompatible with approaches centered directly at the level of belief and doubt, yet large numbers of doctors regularly prescribe placebos[1,2], some even using things like antibiotics or steroids for this purpose. Perspectives that cultivate positive, empowered spiritual and mental outlooks about one's ability to heal and live well are not "quackery".
Am I against scientific approaches to healing? Not at all. I'm against unfounded allegiance to mediocre, dogmatic forms of "science" that default to shunning any perspective outside of their scope of understanding.
Thankfully, there are open minded doctors and scientists out here shedding crusty dogmas. e.g. http://news.wisc.edu/study-reveals-gene-expression-changes-w...
http://www.caltech.edu/news/microbes-help-produce-serotonin-...
http://www.apa.org/monitor/2012/09/gut-feeling.aspx
[1,2]:
http://www.nhs.uk/news/2013/03March/Pages/97-percent-of-GPs-...
https://www.sciencedaily.com/releases/2008/10/081023195216.h...