This oil is reported by Dr. Penoel to help reduce fevers, candida, nausea, vomiting, and to aid in respiratory function. It may be used in water for flavoring, and helps in cooling the body during hot summer days. Peppermint has been found to improve mental accuracy, and soothe the respiratory system. It may also relieve nausea, fever, vomiting and acid stomach. In addition, it is used for air and water purification.