Stanford University doctors conclude that acupuncture during surgery reduces pain. Research published in The Laryngoscope finds acupuncture effective for reducing pain and improving restoration of a normal diet postoperatively when acupuncture is applied during surgery.
For further details:
Tsao, G. J., Messner, A. H., Seybold, J., Sayyid, Z. N., Cheng, A. G., & Golianu, B. (2015). Intraoperative acupuncture for posttonsillectomy pain: A randomized, double‐blind, placebo‐controlled trial. The Laryngoscope, 125(8), 1972-1978.