Essential oils: what is the clinical tolerance in asthmatic patients?

J Asthma. 2022 May;59(5):934-936. doi: 10.1080/02770903.2021.1888975. Epub 2021 Mar 1.


Essential oils in air-spray form are being more and more used for several purposes, even by allergic and asthmatic patients. Available data on the potentially dangerous effects of volatile organic compounds and terpenes contained in essential oils are scarce, and sometimes difficult to compare. Through the present work, we evaluated the clinical tolerance of asthmatic patients exposed to compounds emitted by an essential oils spray, and compared previous and new data available in the scientific literature, focusing on the aspects that may influence clinical results.

Keywords: Essential oils; asthma; limonene; review; terpenes; volatile organic compounds.

MeSH terms

  • Asthma* / drug therapy
  • Humans
  • Hypersensitivity*
  • Oils, Volatile* / adverse effects
  • Terpenes / pharmacology
  • Volatile Organic Compounds*


  • Oils, Volatile
  • Terpenes
  • Volatile Organic Compounds