A research team from the Federal University of Alfenas, Brazil reported a randomized clinical trial on the effect of single cupping therapy in the treatment of lower back pain(Volpato et al. 2019). The cupping on the pints BL23, BL24, and BL25 bilaterally significantly reducing low back pain and improved pain, sleep and disability of movement.
Volpato, Maria P., Izabela C.A. Breda, Ravena C. de Carvalho, Caroline de Castro Moura, Laís L. Ferreira, Marcelo L. Silva, and Josie R.T. Silva. 2019. “Single Cupping Therapy Session Improves Pain, Sleep, and Disability in Patients with Nonspecific Chronic Low Back Pain.” Journal of Acupuncture and Meridian Studies, November. https://doi.org/10.1016/j.jams.2019.11.004.