Do peppermints stop you from vomiting?

Peppermint oil in candies have had a historical reputation for helping to reduce nausea and vomiting, having been thus used as a "carminative" for over a hundred years. The effect is small and not effective in many people, though, consequently prescription anti-nausea meds such as Phenergan or Compazine may be required. It should be noted that nausea extending beyond a brief duration of 1-2 days will require examination and diagnostic workup by a physician.