Electrotherapy. These tiny electric powered pulses are usually not painful. They take care of soft tissue accidents by stimulating nerves and muscles.  Prevalence of reduced back pain, trying to get health care treatment, and misplaced time resulting from minimal back pain among the guide product dealing with personnel in America (2019) https://www.theorthopaedicandpainpractice.com/alleviating-aches-exploring-lower-back-buttock-pain-relief-solutions-in-singapore/