In addition to being ingested, peppermint oil can be used topically or in aromatherapy. Topical application may help to soothe chronic itches. The smell of peppermint oil may help reduce nausea ...

Peppermint oil can help with tension headaches when ... like lemongrass or ylang ylang oil. Can you ingest essential oils? No, never. Many essential oils can poison you if you ingest them.