In Dr. Zhou Zhongjing's "Six Classics and Thirty-six Prescriptions" system, Mahuang Decoction belongs to the classic prescription of Taiyang Disease-Bladder Meridian System and is used to treat Taiyang Bladder Meridian diseases.
Mahuang decoction, as the main prescription of bladder diseases, can naturally treat headache, fever, aversion to cold, and anhidrosis, including accompanying body aches and other symptoms. Its essence is to treat and adjust the external function of bladder meridian.
The bladder meridian passes through the lung, which has a conghua relationship with the Taiyin spleen system, and the lung controls the fur and the spleen's main reinforcement, so Mahuang Decoction is the tendon and fur in terms of its specific parts. The article "Ling Shu Ben Cang" says: "Those who guard qi, therefore warm meat, mend skin, fatten and open and close", which is what it means. Therefore, we simply understand the therapeutic effect of Mahuang decoction, which is to help the bladder meridian system of human body, drive away the cold evil that infringes on human muscle and skin, and restore human body to a healthy state.
What is the regulating effect of Mahuang decoction on the bladder meridian system of the sun? Let's look at such a passage in Su Wen Bi Disease: "Wei, the fierce qi of the water valley can't enter the pulse, so it penetrates the skin and divides the meat, and the smoke is in the capsule and scattered in the peritoneum. The opposite is sick, and the opposite is good. " The protection of bladder meridian qi can maintain the good function of human membrane, thus maintaining the normal operation of key parts of the body. On the contrary, if the bladder meridian function is abnormal, there will be life-threatening situations, such as dyspnea and syncope. In the later literature, Mahuang Decoction was called Shen Huan Decoction in Synopsis of the Golden Chamber, which can treat syncope. Its mechanism is Wei Qi's strengthening and conditioning effect on the cream film mentioned in Su Wen Bi Bing Tablet. Later generations interpret Huanshen Decoction from the adrenergic and pressor effects of Herba Ephedrae and Ramulus Cinnamomi. Although enlightening, it eventually lost the original intention of Mahuang decoction to regulate the effect of ointment.
Mahuang decoction, as a rejuvenation decoction, regulates the function of membrane. What are the key points to grasp? According to Dr. Zhou, the main reason is that the patient is short of breath, accompanied by cold bladder meridian, such as easy to catch a cold, catch cold, unfavorable urination or long urine. In various books of Chinese medicine, Mahuang decoction can treat asthma syndrome, which plays a part in rejuvenation decoction. From this point of view, if you have cold syndrome of bladder meridian with asthma, you can also use Mahuang decoction. Of course, it should be noted here that if there is a mixture of cold and heat in the body, George needs to be given medicine.
In the strange book Fu Xing Ji, the name of Mahuang Decoction is Xiaoqinglong Decoction, and the prescription is Daqinglong Decoction. In Treatise on Febrile Diseases, Daqinglong Decoction and Xiaoqinglong Decoction are added and subtracted on the basis of Mahuang Decoction. From this, we can see that Mahuang decoction can treat water-dampness diseases, and its process is also to remove water-dampness pathogens in muscles, intradermal, diaphragm and peritoneum by enhancing the function of the bladder meridian of the sun. From this change, Mahuang Forsythia Chixiaodou Decoction can be evolved to treat various skin diseases caused by skin moisture, which is easy to understand.
Mahuang Decoction, with three members in one side (Mahuang Decoction, Shen Huan Decoction and Xiaoqinglong Decoction), has three functions of cold, asthma and eczema, and is worthy of being a classic recipe. Once we know these three names clearly, we will read the addition and subtraction formula of Mahuang Decoction again, and we will be at home!