Tongcao is cold in nature, sweet and light in taste, and has many functions: 1, Tongcao has a diuretic, seepage of dampness, Tongcao can facilitate urination, swelling, treatment of dampness-heat, can be used to treat oedema and urinary symptoms. 2, Tongcao can be used for ventilation, breast milk, if the postnatal milk can not be or milk is low you can use the Tongcao, has a very good role in lactation, with the Tongcao, licorice, pig’s hooves and stewed together to promote the next breast milk. 3, Tongcao and heat, the role of the damp heat, can be used for the treatment of dampness-heat caused by headache, poor appetite, chest, afternoon body heat and other symptoms. 4, Tongcao also has the role of the nose, if a cold you can use Tongcao to 4.通棹は鼻の役割もあり.風邪を引いたら通棹で鼻を通せば.効果は非常によい。 しかし.同棗にも副作用があり.服用量が多すぎると吐き気.嘔吐.胃痛などの症状が現れ.長期的に大量に服用するとコレステロールが増加するので.陰虚.ガス欠.多くの妊婦は服用が禁止されている。