Inhalation of this essential oil can be used to reduce fever, relieve nausea and vomiting, and improve digestion (12). Peppermint essential oil has antagonistic effects against 5-HT3 receptor channel which can positively affect nausea and vomiting (19).
To relieve nausea: Lavender, chamomile, peppermint, ginger. Sniff them directly from the bottle, or sniff a cotton ball or tissue treated with a drop or two. â€œThey ease belly upset and are good essential oils for morning sickness,â€ Galper says.