Letter to the Editor Commenton“TheEffectsofVariousEssentialOilson EpilepsyandAcuteSeizure:ASystematicReview” ThomasMathew , 1 SajiK.John, 1 VikramKamath, 2 andAshaShaji 1 1 Department of Neurology, St. John’s Medical College Hospital, Sarjapura Road, Bengaluru 560034, Karnataka, India 2 Department of Neurology, Apollo Hospitals, Bannerghatta Road, Bengaluru 560076, Karnataka, India Correspondence should be addressed to omas Mathew; chakkuthom@hotmail.com Received 4 June 2019; Accepted 10 September 2019; Published 30 September 2019 Academic Editor: Daniela Rigano Copyright © 2019 omas Mathew et al. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We have read with great interest the article by Bahr et al. entitled e Effects of Various Essential Oils on Epilepsy and Acute Seizure: A Systematic Review, published in May 2019 edition [1]. e article is very informative and is pertinent in the current context, as a lot of essential oils are used and misused by the public. e effects/outcome of various es- sential oils on epilepsy and acute seizure are well described in the article. As the authors have reviewed only the publi- cations up to 2017, they have missed one important pub- lication on seizures induced by the inhalation of the essential oil of eucalyptus. We, from Bangalore, South India, had described 10 cases of eucalyptus oil inhalation-induced seizures in 2018 [2]. We have also presented a paper on essential oil-related seizures due to balms and various preparations containing the mixture of essential oils of eucalyptus and camphor in a recently concluded American Epilepsy Society meeting in New Orleans [3]. Indeed, we observed that many of the cases of the so-called “idiopathic seizures” are induced and provoked by essential oils of eucalyptus and camphor as they are the most common commercially available essential oils. We have also observed that inhalation, ingestion, and even topical application can trigger seizure. In our case series, indeed, topical application was the commonest mode of exposure. Physicians are not aware of the proconvulsant properties of these essential oils and rarely enquire about the exposure to these in their history taking [4]. As all these balms, oils, and other products containing eucalyptus, camphor, and other epileptogenic essential oils are freely sold in the market and are used by many, thinking they are safe, it is high time that public, especially those with seizure and epilepsy, should be counselled to avoid these essential oils with proconvulsant properties [5]. Articles like this should sensitize commercial companies and regulatory authorities to put labels on products with proconvulsant essential oils stating “poten- tially proconvulsant and to be avoided by people with epi- lepsy.” is may prevent many cases of essential oil-related seizures, especially those secondary to usage of camphor and eucalyptus. ConflictsofInterest e authors declare that they have no conflicts of interest. References [1] T. A. Bahr, D. Rodriguez, C. Beaumont, and K. Allred, “e effects of various essential oils on epilepsy and acute seizure: a systematic review,” Evidence-Based Complementary and Al- ternative Medicine, vol. 2019, Article ID 6216745, 14 pages, 2019. [2] T. Mathew, V. Kamath, R. S. Kumar et al., “Eucalyptus oil inhalation-induced seizure: a novel, underrecognized, pre- ventable cause of acute symptomatic seizure,” Epilepsia Open, vol. 2, no. 3, pp. 350–354, 2017. [3] T. Mathew, V. Kamath, R. Jadav et al., “Essential oil-induced (EOIS) and provoked seizures (EOPS): a multicentric pro- spective observational study from South India,” in Proceedings of the 12 th Asian and Oceanian Epilepsy Congress, American Epilepsy Society, Bali, Indonesia, June-July 2018. Hindawi Evidence-Based Complementary and Alternative Medicine Volume 2019, Article ID 6829428, 2 pages https://doi.org/10.1155/2019/6829428