The health benefits of peppermint oil include its ability to treat indigestion, respiratory problems, headache, nausea, fever, stomach and bowel spasms, as well as for pain relief. Due to the presence of menthol, menthone and menthyl esters, peppermint and peppermint oil find wide applications in the manufacturing of soap, shampoo, cigarettes, toothpaste, chewing gum, tea and ice cream.