In this article from the Guardian, I see where the NHS in the UK no longer recommends acupuncture as an effective way to manage non-specific lower back pain and sciatica: https://www.theguardian.com/science/2016/mar/24/acupuncture-for-low-back-pain-no-longer-recommended-for-nhs-patients (Acupuncture for low back pain no longer recommended for NHS patients) It seems as though the NHS was approaching acupuncture as a strictly physical modality however. It made me wonder whether acupuncture might be a tool for accessing the unconscious emotions behind lower back pain and sciatica? So it wouldn't be as simple as get poked and see a reduction in pain level. I've noticed that during some of my acupuncture sessions I've experienced a big emotional release, similar to what Aristotle called a catharsis. Pretty hard to scientifically categorize though.