In mainland China, there are currently 7 versions of national diagnosis and treatment guidelines, and traditional medicine content has been included since the third version.6 Using the government-issued national guidelines as a reference, 17 provinces, 4 municipalities and 4 autonomous regions in mainland China officially issued traditional medicine-related guidelines for the prevention and treatment of COVID-19. All the guidelines were devised by local health authorities according to regional characteristics and local prevalence of COVID-19 and have been continuously updated since the first issuance.5