- The spicy, bitter leaves of spearmint, or garden mint, affect the liver and lungs with diaphoretic, aromatic, stomachic, calmative, muscular contraction reliever, and mild alterative actions. Specifically, spearmint leaf can be used to help support fevers, coughs, colds, stomach gas, and melancholy. The leaves contain a volatile oil, menthol, menthone, d-limonene, neomenthol, tannins, and other ingredients. – Spearmint can be useful for many minor acute ailments including coughs, colds, fevers
