Patchouli Zhengqi Liquid is basically an improved version of Patchouli Zhengqi Water, which is mainly different in terms of preparation and composition. Patchouli Zhengqi Liquid is made by decocting the drugs and removing the dregs and taking the juice, which is free of alcohol, characterized by fast absorption, rapid effect of the medicine, better taste, no stimulation to the stomach and intestines, more suitable for the elderly, women and children. Patchouli water by patchouli oil, perilla leaf oil with ethanol dissolved in the right amount combined with several other herbal solutions and become, characterized by a more pronounced efficacy, but the taste is often worse, children, pregnant women should be used with caution. The two ingredients are patchouli to dispel wind and cold, aroma and dampness, and to dispel filth and in the middle (to exclude the dirt and the harmonization of the spleen and stomach in the middle jiao), ascending Qing and descending turbidity (so that the clear gas rise, turbid gas down); perilla, Angelica dahurica two drugs pungent temperature dispersal; thick Park, the belly of the skin to move the gas and dry dampness, in addition to the fullness of the elimination of flatulence; half-summers, Chen Pi, dry dampness and the stomach, descending the reversal of the vomit (to prevent the upward flow of gastric qi, to stop the vomiting). In addition, Atractylodes macrocephala and Poria dry dampness and strengthen the spleen, harmonize the middle and stop diarrhea; Glycyrrhiza glabra harmonizes the spleen and stomach with the medicinal properties. Both of them can be used for colds and flu caused by external wind-cold, internal dampness stagnation (stagnation of dampness in the body caused by too cold diet, etc.), or summer heat-dampness (the human body is susceptible to summer heat and dampness in summer). The efficacy of the two are similar, the specific use of medication under the guidance of a physician, do not take medication without authorization, so as not to delay the condition.