TENS Machine: How does a TENS machine work?
It is best to use a TENS machine only on the advice of a doctor or other health professional. They are not suitable for all types of pain or all conditions. ... Literature Review and Meta-Analysis of Transcutaneous Electrical Nerve Stimulation in Treating Chronic Back Pain. Reg Anesth Pain Med. 2018 May;43(4):425-433. doi: 10.1097/AAP ...
