Peppermint oil may have no more effect than a placebo on postoperative nausea. ... However, of the oils tested, peppermint had the lowest impact on fungus, specifically on Candida yeast.

Peppermint oil has many potential benefits, like relieving GI discomfort, nausea, and pain. ... Selected essential oils as antifungal agents against antibiotic-resistant Candida spp.: ...