Acupuncture is widely used for managing acute and chronic pain conditions. In the context of an emergency department (ED), patients often present with non-emergent acute pain symptoms. This may result in a delayed triage process and inefficient emergent management. An integrative patient-care approach in emergency departments has been explored that may improve patient satisfaction and promote efficient use of healthcare resources for non-emergent patients in the ED. This implies there is a potential role for acupuncture in such contexts. The aim of this pilot study is to assess the effectiveness and safety of acupuncture as an add-on intervention for patients with non-emergent acute musculoskeletal pain and primary headaches in an ED setting.