Da Qing Long Tang is a good formula to remember and rely on the song: Da Qing Long Tang, Gui Ma Huang, Apricot grass, ginger, ginger and dates. This formula is good for relieving both wind and cold when there is no sweating and irritability in the Sun. (Recite the song recipe can effectively help to remember) Composition: ephedra, cinnamon branch, licorice, almonds, gypsum, ginger, jujube Functions: to generate sweat to relieve symptoms, clear heat and eliminate irritability (heavy cold, heavy fever, “no sweat and irritability”) The name of Da Qing Long Tang has a great origin About the origin of the name of Da Qing Long Tang, there is a saying that the blue dragon is the four elephants (blue dragon, white tiger, vermilion bird, xuanwu) The green dragon is one of the four elephants (blue dragon, white tiger, vermilion bird, xuanwu), the five elements, the five elements of the East is wood, its color is green, said the green dragon. The dragon can overturn the sea, move the clouds and send rain, so Da Qing Long Tang is called Qing Long Tang because it can relieve the symptoms of sweating and is related to water. Da Qing Long Tang is a subsidiary formula of Ephedra Tang, the Great Dragon can move clouds and rain, such as Da Qing Long Tang to dispel superficial sweat, sweat out and solve. Da Qing Long Tang is used in this way Summer greed for coolness, the air conditioning temperature is very low, evil cold and fever, no sweat, gradually to irritability. The main symptom of external wind-cold symptom is Da Qing Long Tang, and the wind-cold is not relieved, Wei Yang is closed and depressed, and heat is seen at the beginning, which is its concurrent symptom. “The higher the fever is, the more the fluid is depleted, hence the irritability. “Irritability” is a very important manifestation of Da Qing Long Tang evidence. The use of medicine is like using a soldier, the formula is heavy on ephedra (characteristics: “open and drain the couples, penetrate the hair and hair orifices”), ephedra (jun) is like an iron rider directly into the blood, through the Ying division, even though the cold evil made fierce resistance, but ultimately can not resist. Gui Zhi (subject) warms the meridians, relieves the muscles and publishes, penetrates the Ying and Wei, and helps Ephedra to sweat. Gypsum (adjunct) assists Ephedra and clears internal heat, and restrains the sweating power of Ephedra, making it pungent and warm; ginger and jujube protect stomach qi, like a logistic force, providing the material basis for sweating. Glycyrrhiza glabra (make) harmonizes the medicinal properties, and moderates the harshness of ephedra. In Da Qing Long Tang, the combination of Ephedra and Gui Zhi can generate sweat and warm the blood vessels; the combination of Glycyrrhiza and Gypsum can generate fluid, clear heat and eliminate annoyance; the combination of ginger and jujube takes into account the positive energy. The combination of ginger and jujube takes into account the vital energy. It can be said to be comprehensive. Da Qing Long Tang can sweat to relieve the symptoms, clear heat and remove irritation, and when the dragon rises and falls, the heat is removed, and the irritability is relieved. When properly applied, it can heal before the cup is put down and the sweat comes out. The effect is like a rafter, with immediate effect. It is also because of the strong sweating power of Da Qing Long Tang that it should not be used for those with wind-cold superficial deficiency and spontaneous sweating.