Peppermint has antispasmodic properties and helps relax the digestive system. It is used for intestinal colic and indigestion, flatulent dyspepsia, nausea and vomiting of pregnancy or travel sickness, ulcerative colitis, and Crohn's disease (especially as enteric coated capsules).

It is appropriate for fevers, colds and influenza and helps relieve nasal and sinus congestion. Add 2 to 3 drops essential oil to warm water and inhale vapour. Also used for migraine headaches (especially from digestive sources) and helps ease hysteria, anxiety, tension, uterine colic, and dysmenorrhea.

Topical use is appropriate for itching and inflammation.

Peppermint oil helps reduce bile cholesterol levels and increases bile acid and lecithin levels in the biliary system. As a result, peppermint is ideal for dealing with gallbladder situations. In addition, peppermint oil helps relieve chronic burping often associated with gallbladder situations.