Transcutaneous electrical nerve stimulation (TENS) is often a surface area-applied unit that provides minimal voltage electrical existing in the skin to produce analgesia. Corydalis is the genus of the perennial flowering plant inside the poppy household with around 400 species. The tubers of corydalis (corydalis yanhusuo yan hu suo; https://heywoodc876xji9.hazeronwiki.com/user