Transcutaneous electrical nerve stimulation (TENS) is a floor-applied unit that provides reduced voltage electrical current from the skin to supply analgesia. Corydalis could be the genus of a perennial flowering plant inside the poppy relatives with more than 400 species. The tubers of corydalis (corydalis yanhusuo yan hu suo; https://modernbookmarks.com/story20625713/what-does-conoldine-alternative-natural-pain-relief-mean