While some research states that belief may be a contributing factor in the effectiveness of acupuncture, the NIH acknowledges that “Acupuncture may help ease types of pain that are often chronic such as low-back pain, neck pain, and osteoarthritis/knee pain”. therefore, while the efficacy of acupuncture has not been “proven”, the evidence supporting it is strong enough that it does differentiate it from silver bullet elixirs and other treatments of the sort. Also, since the risks of acupuncture, when performed with sterile equipment by skilled practitioners, are relatively low there is little reason to disallow the practice. I would argue the same for electro-acupuncture.

https://nccih.nih.gov/health/acupuncture/introduction#hed3