Transcutaneous electrical nerve stimulation (TENS) is a surface-applied unit that provides small voltage electrical present throughout the skin to make analgesia. Corydalis would be the genus of the perennial flowering plant while in the poppy relatives with over 400 species. The tubers of corydalis (corydalis yanhusuo yan hu suo; https://how-to-use-conolidine03567.blog-ezine.com/38156229/the-fact-about-conoldine-alternative-natural-pain-relief-that-no-one-is-suggesting