The ethnobotany, since the beginning of the world, has been at the service of humanity, where humans see animals, have known how to use plants found in their environment, for food and care. In recent years, the increasing use of plants in traditional medicine has stimulated an interest in ethnobotanical studies around the world. In response to the spread of several diseases, World Health Organization urges developing countries to integrate, in their official health system, herbal remedies whose aspects, safety, efficacy, and quality are guaranteed. Without presenting a history of the different civilizations (China, India, the Romans, the Arabs ...), which have beautifully and well-developed the art of ethnobotanica, over time, ethnobotanica is' a part of general botany, which has its own lexicon see a classification of medicinal and aromatic plants linked to the part of the plant used by humans for treatment or plant beneficial to health and toxic plant ... Nowadays and with the advents of so-called pandemic diseases (Ebola, SARS, covide-19), ethnobotnica, have had its share as a contributor to the fight against its devastating natural plagues, for example mixing honey with garlic greatly strengthens and boost the humanitarian system, and thus provides resistance against COVID-19 or their symptomatic’s. ginger, and the black seed mixed with turmeric taken as an infusion, give a magic drink for more pain and sufferance; citrus with clove taken then as decocted bring you away from seasonal flu…

In this scope, we are to share the knowledge of different ethnics groups, across the world and their experience against this scourge using feed or herb mixture, through the ethnobotany.