Introduction: There is a global concern about COVID-19 long-term impact on multiple domains of life. The WHO has raised concerns regarding the pandemic’s psycho-social and mental health consequences. Many recent articles explored the efficacy of using aromatic plants essential oils (EOs) as promising candidates for management of different mental health issues. Objectives and Methods: A co-occurrence analysis of the available literature from Scopus, Web of science, and PubMed databases was conducted using network and overlay visualization created via VOSviewer software to examine the role of EOs in alleviating mental health crisis in the post-COVID-19 era. Results: The United States and China emerged as the leading contributors to the literature, followed by India and Iran. The authors affiliated with Tehran University of Medical Sciences produced the highest volume of research in this field. The analysis showed a progressive growth in publication volume, rising from 8 documents in 2015 to 27 in 2025, with a significant spike occurring in 2019 and 2020 coinciding with the COVID-19 pandemic. Results revealed that terms such as mental health, stress, depression, insomnia, and anxiety are common search terms in literature and exhibit strong associations with aromatherapy and COVID pandemic. The most frequently used EOs in the context of mental health improvement are lavender(Occurrence 8, TLS 92), bergamot (occurrence 5, TLS 53), peppermint, chamomile and rosemary. EOs exert antidepressant, anxiolytic, and anti-stress effects, which contribute to their therapeutic potential in enhancing psychological well-being. Conclusions: This analysis simplifies the data, enabling researchers to trace past work and outline future directions.