Dried mint leaves is the Chinese medicine mint, this medicine has the efficacy of evacuating wind-heat, dredging the liver and promoting the flow of qi, diaphoretic, etc. It is suitable for wind-heat colds, chest and hypochondriac distension and pain (distension and pain in the chest and ribs area), sore throat, rubella, and so on. Dried mint leaves are cool in nature, pungent in flavor, and belong to the lung and liver meridians. It is effective in dispersing wind-heat, clearing the head and eyes, dredging the liver, promoting circulation of qi, inducing diaphoresis, and transmitting rashes. It is suitable for wind-heat cold, headache, redness of eyes, distension and pain in the chest, distension and pain in the abdomen, sore throat and itching of rashes. Dried mint leaves should not be decocted for a long time. Compared with peppermint stalks, peppermint leaves are long in sweating and relieving the symptoms. The adverse reactions and contraindications of Mentha piperita are not clear. It is aromatic, pungent and dispersive, and consumes Qi through sweating, so it should not be taken by those who are weak and sweaty. If you need to use the medicine, you should consult your doctor first and use it under the doctor’s guidance, don’t use the medicine blindly, so as not to cause damage to the organism.