One recent review of 22 acupuncture studies showed that it provided short-term relief from chronic back pain. It also showed there was greater improvement in pain for people who got acupuncture compared to those who received a “sham” treatment. Other studies have found, though, that sham acupuncture can be as effective as actual acupuncture. Those studies also found that, compared to standard treatment, both actual acupuncture and sham acupuncture are more effective.