Acupuncture could be an effective and safe treatment for children with autism spectrum disorder (ASD). Twenty-seven RCTs with 1736 participants were analysed by Korean authors. Acupuncture either as a monotherapy or complementary to behavioural and educational intervention was found to significantly decrease autism rating scores.

The Efficacy and Safety of Acupuncture for the Treatment of Children with Autism Spectrum Disorder: A Systematic Review and Meta-Analysis. Evid Based Complement Alternat Med. 2018 Jan 11;2018:1057539.