If unpinching the nerve with chiropractic adjustments, surgery or other mechanical alterations have no effect and yet, moving the Qi does, then perhaps the nerve issue is not even true, but its all about the stagnated flow of Qi energy. Same thing goes with internal medicine. For this, acupuncture, and as often, herbal medicines are used. Internal medicine means things that aren't painful in the muscles or whatever. These are not necessarily pain syndromes, but all the other diseases and sicknesses that people get.
Chinese medicine says that it is heat in the lungs.
We give herbs to clear the heat from the lungs and the problem goes away. And yet, with modern scientific testing methods, the herbs in that formula have absolutely no antibacterial or anti viral action. Or was it heat in the lungs. I'd say that if clearing the heat form the lungs made the problem go away, then the problem must have been heat in the lungs. So, when you ask an MD what acupuncture can do and what it can't.