About 90% of my acupuncture is aimed to treat the tenth cranial nerve, the vagus nerve which innervates the visceral organs such as the heart, the lungs, and the gastrointestinal tracks, and interfaces with the parasympathetic.  This treatment is especially effective for pain reduction if not for all symptoms.  The weakness of other modalities is that they only treat symptoms and a treatment for the vagus nerve is not in their minds.