Background and Objective: In December 2019, the outbreak of coronavirus disease 2019 (COVID-19) was observed in China, and it it spread rapidly throughout the world. Iranian traditional healers have applied different medicinal plants to prevent and treat COVID-19 based on their ethnopharmacological knowledge. This research aimed to investigate the ethnomedicinal knowledge of Iranian traditional healers to alleviate COVID-19 signs and symptoms.
Materials and Methods: Due to the limitations caused by COVID-19 pandemic, oral interviews were conducted by 26 traditional healers in Kerman and Zahedan cities in Iran. The names of recommended remedies for COVID-19 were collected, and their scientific names were authenticated. Next, a comprehensive research was carried out in the scientific databases. Finally, the herbs with any related proved properties to the respiratory system were listed; these herbs were probably useful for the COVID-19 prevention or treatment.
Results: Zataria multiflora, Althaea officinalis, Hordeum vulgare, Malva sylvestris, Matricaria chamomilla, Glycyrrhiza glabra, Allium sativum and Zingiber officinale are considered as the most popular herbs by Iranian traditional healers for prevention and/or treatment of COVID-19. Recent studies have demonstrated that the above-mentioned herbs can be considered as good sources for alleviating the respiratory disorders such as influenza. Moreover, they have antitussive and immune-modulatory properties.
Conclusion: Since there is no effective treatment for COVID-19, the capacity of different traditional medicine and ethnomedicine knowledge can be used as good sources for new drug discovery after accurate studies.