According to the World Health Organization, 30% of the drugs sold worldwide contain compounds derived from plant materials which include more than 21,000 taxa. These plants are widely distributed globally, including South and South East Asia. In India more than 7,500 species are used in ethnomedicines, which is half of country's Indian native plant species, China uses 6,000 species, Africa over 5,000 and Europe at least 2000 MAP. The revenue of aromatic plants is roughly estimated to be around $5 billion excluding the pharmaceutical trade. The attention to the common man towards medicinal plants might have been arousing during this pandemic, but even modern medicine turned its face towards essentials oils, ever since the very first scientific research into essential oils and their effects upon micro-organisms happened in 1887. Further research was carried out in France by Chamberland, later being confirmed by Cadac and Meunier. The research confirmed that essential oils had the ability to kill the micro-organisms responsible for glandular fever and yellow fever.