In my experience musicians turn more often than average to ‘alternative medicine' for help with problems, or just with hope to improve their health. The list includes the “Three ‘R’s,’” Reiki, Reflexology, Rolfing, and chiropractic, acupuncture, massage, vitamins and a zillion 'dietary supplements’ (and don't forget coffee enemas).
If you believe in them and their method, capable and caring practitioners of most alternative methods, chiropractors to reflexologists, can trigger your placebo response. Of course in the long term, the elephant in the room for all therapies is time; the body, given time, has remarkable power to heal itself. Back pain, for example, will naturally resolve in seven weeks in 85% of episodes, regardless of what happens during that time. Impatience may take us to a therapist who will, of course, accept the credit.
Offit's first sign of quackery is a recommendation against conventional therapies that are helpful or even lifesaving. “Chinese herbal therapy for people with HIV looks much more promising” (than western medicine). That was published by Andrew Weil eight years after AZT had been shown to decrease HIV replication.
All substances, whether ‘natural’ or ‘synthetic,’ ‘medication’ or ‘supplement’ (economic and political distinctions, not medical ones), have risks and can harm. (Calling a substance a 'dietary supplement' allows it escape the watchful eye of the FDA.) Acupuncture needles have been extracted from lungs and can spread infection.