ABSTRACT
Essential oils (EOs) have been studied for their ability to reduce oxidative stress and inflammation, modulate immune reactions, cause bronchodilation, and prevent the growth of microorganisms as well as cancerous cells. Recently EOs as well as their components have also been studied for their antiviral effects via different mechanisms. Various in silico studies have been recently performed to understand their antiviral potential against SARS-CoV-2. Due to their considerable positive effects such as lipid solubility, synergistic effects, and most importantly their capability to reduce oxidative stress, they are suitable treatments for respiratory infections caused by different viruses. In addition to their antiviral effects, EOs possess considerable anti-inflammatory, antioxidant, and immunomodulatory effects and could offer symptomatic relief to infected individual. Due to the anti-inflammatory effects of the chemical compounds present in EOs, they can reduce hyperinflammation caused by SARS-CoV-2 virus. This chapter discusses the immunomodulatory activity of EOs.
