Chinese Medicine: Starting with Daily Intelligence-Chapter 83: Treating the Exterior and Interior, Balancing Pathogen and Vitality
"Doctor Li."
Guo Yu, dressed in casual clothes, arrived at Li Xu’s clinic.
Li Xu quickly stood up to greet him, feigning ignorance. "Director Guo, what brings you here?"
"I’ve come to learn," Guo Yu said frankly. "I couldn’t cure the case of excessive sweating, but you handled it and the medicine worked like a charm. Of course I had to come and learn from the master."
Li Xu invited Guo Yu to sit down and took out Zhang Shufen’s medical file. "You’re too kind. Actually, your diagnosis was completely correct. It was just the dosage that was..."
"Too conservative," Guo Yu said with a wry smile. "I was so focused on being cautious with warming herbs in the summer that I forgot the principle that ’the medicine must be stronger than the illness’."
Just as it takes more than one cold day for ice to freeze three feet deep, severe illnesses don’t appear overnight. Many chronic, stubborn diseases linger and are difficult to cure. As they progress, they often become complicated by dampness, phlegm, qi deficiency, blood stasis, heat toxins, stagnation, or a deficiency of both yin and yang. The pathogenesis is intricate, and the true pattern is hard to discern from the false.
The illness is like a demon; the medicine is like the Dao.
If the demon rises one foot, the Dao must rise ten.
Only then can it overpower the opponent.
Otherwise, you will suffer harm from it instead.
The two began an in-depth discussion of the case.
Li Xu explained, "The *Treatise on Cold Pathogenic and Warm Pathogenic Diseases* never says that warming herbs can’t be used in the summer. The key is to use the right formula for the right pattern. Aunt Zhang’s Yang Qi was severely damaged; nothing short of a large dose of Aconite could restore her yang and rescue her from collapse."
Guo Yu raised the question on his mind: "Thirty grams of Aconite... isn’t that a toxic dose?"
"If it’s processed properly and decocted for a long time to remove the toxins, all that’s left is its yang-warming effect," Li Xu replied. "The Aconite I choose is always top-grade, which further reduces its toxicity."
"I see."
Understanding dawned on Guo Yu.
He had only remembered that Aconite was toxic and that its dosage required extreme caution.
He had overlooked the fact that the toxicity could be removed.
"Doctor Li, I have another case I’d like to consult with you about."
Guo Yu took a neatly bound stack of medical files from his bag and handed it to Li Xu.
The corners of the pages were slightly curled, a clear sign they had been reviewed many times.
Li Xu accepted it with both hands and began to read it carefully.
The clinic fell silent, the only sound being the SHUSH of rustling paper.
Outside the window, the faint drone of late-summer cicadas drifted in, adding a touch of life to the quiet space.
Patient: Female, 62 years old. Initial consultation: July 29, 202X.
Chronic cough, unresolved for over a year.
She catches colds easily. A year ago, she caught a chill in an air-conditioned room because she was lightly dressed. Since then, she has had a persistent, non-stop cough, producing white, foamy phlegm.
A month ago, she caught another wind-cold while outdoors, which worsened the cough.
She has been on long-term treatment with Western anti-inflammatory and cough-suppressant drugs, and has also taken dozens of doses of Chinese medicine, with no significant effect.
...
"This case..."
Li Xu focused his mind, thinking with all his might.
The intel didn’t mention this case.
However, inspired by Zhang Shufen’s case, Li Xu felt that this one might require a similar approach.
But he needed to confirm it.
He looked up at Guo Yu. "Formulas for clearing heat, transforming phlegm, diffusing the lung, and stopping cough?"
Guo Yu nodded, a look of confusion in his eyes. "I’ve been on this case for two months. I’ve tried four different formulas, from Sang Ju Yin to Qing Jin Hua Tan Tang, but none have been effective."
Li Xu continued reading. When he reached the line "spitting up cold phlegm and saliva, aversion to cold in the upper back, and coldness in the limbs," his eyes suddenly lit up. "Director Guo, is the patient’s phlegm cold?"
"Yes, I specifically asked. It is indeed cold phlegm," Guo Yu recalled. "The patient is elderly, and she mentioned several times that when she accidentally coughed some onto her hand, it was very cold."
Li Xu held the case file, not saying a word.
His mind, however, was racing, searching through every medical text he had ever read for a corresponding solution.
Guo Yu stood quietly to the side, not rushing him.
He knew that when a doctor is thinking, the worst thing you can do is interrupt them, or you might break a fragile train of thought.
"Pale tongue with a thin, white, slightly greasy coating; a thin and weak pulse... poor appetite with loose stools, clear and profuse urination..."
Li Xu suddenly remembered a case file his father had left behind and immediately came to a decision. "This isn’t an ordinary cough. It’s cold-fluid retention obstructing the lungs!"
So-called "cold-fluid" refers to the pathological accumulation of water and dampness that has cold characteristics.
Its formation is closely related to the dysfunction of three organs: the lungs, spleen, and kidneys.
Its external cause is the invasion of cold pathogens that obstruct fluid transport in the lungs and stomach. Its internal cause is either insufficient spleen yang, which fails to transform water and dampness, or deficient kidney yang, which fails to warm and transform fluids, leading to internal fluid retention.
"Cold-fluid?" Guo Yu leaned forward slightly. "But the patient was exposed to cold long-term in an air-conditioned room and then caught another wind-cold. Shouldn’t it have transformed into heat by now?"
"That’s not how it works." Li Xu shook his head, took a copy of the *Essential Prescriptions of the Golden Cabinet* from the bookshelf behind him, and turned to the Chapter on phlegm-fluid and cough. "’For those with phlegm-fluid diseases, one should harmonize them with warming medicine.’ The patient has an underlying yang deficiency with internal retention of cold-fluid. Catching another external cold created a pattern of cold both internally and externally."
He pointed to the symptoms in the file, analyzing them one by one. "The cold phlegm is ironclad proof of cold-fluid. The aversion to cold in her upper back is from yang deficiency failing to warm the body. The cold limbs mean the Yang Qi isn’t reaching the extremities. And the loose stools and clear urine are further signs of spleen and kidney yang deficiency. All these symptoms combined point to a classic case of cold-fluid cough."
Realization slowly dawned in Guo Yu’s eyes. "So clearing heat and transforming phlegm was just making matters worse..."
"Exactly." Li Xu nodded. "Heat-clearing herbs are cold and damage the yang. Phlegm-transforming herbs are often acrid and drying, consuming qi. Using them for this pattern is like trying to put out a fire with ice."
Li Xu took out a prescription pad, his pen dancing across the paper. "This pattern requires a combination of three formulas—Ma Huang Xi Xin Fu Zi Tang to warm the yang and release the exterior, Ling Gan Wu Wei Jiang Xin Tang to transform fluid and stop the cough, and Gui Zhi Jia Huang Qi Tang to harmonize the ying and wei."
Guo Yu leaned in to look at the prescription. "Six grams of ephedra, twenty grams of Aconite, ten grams of Asarum... such large doses?"
"A heavy illness requires strong medicine; a light dose is like scratching an itch through your boot." Li Xu’s pen didn’t stop. "The patient has had cold-fluid obstructing her lungs for over a year. Nothing less than a heavy dose can move it."
He continued writing, "Twenty grams of Poria Cocos to fortify the spleen and drain dampness, twenty grams of dried ginger to warm the middle and transform fluid, ten grams of Schisandra to astringe the lungs and stop the cough... plus almond and Magnolia Bark to help the lung qi descend and disperse."
Guo Yu stared at the dense list of herbs and dosages on the prescription pad, finally convinced. "Doctor Li, to be honest, before this, I would never have dared to use such large doses. We’re in the height of summer, and such a strong prescription of warming herbs could cause problems. But after seeing Zhang Shufen’s excessive sweating case, I agree that a large dose is necessary..."
Li Xu put down his pen and continued, "Director Guo, do you remember what the *Inner Jing* says? ’If the pattern is present, use the appropriate medicine.’ The season is just a reference; pattern differentiation is the foundation."
He gestured toward the blazing sun outside. "For instance, right now, someone suffering from heatstroke would need Bai Hu Tang, while someone who overindulged in cold drinks and developed internal cold would need Li Zhong Tang. The season doesn’t determine the medicine; the pattern is the key."
Guo Yu was already convinced by Li Xu. "So the large initial dose of warming herbs is meant to..."
"A serious illness calls for powerful medicine to hit the mark in one blow," Li Xu explained. "Once the cold-fluid begins to transform and the Yang Qi is restored, we’ll gradually reduce the dosage to prevent an overdose from injuring the yin. This is called ’stopping once the greater part has abated’."
He detailed the treatment steps: "For the initial course, use ten doses of the original formula to break the obstruction of cold-fluid. Once the cough and wheezing are reduced by half, decrease the Asarum to six grams, the dried ginger to fifteen grams, and the Aconite to fifteen grams. If the symptoms have mostly disappeared by the follow-up visit, we can remove the ephedra and further reduce the other acrid, warming herbs."
Guo Yu took careful notes, asking occasionally, "With three formulas combined, won’t their effects overlap?"
"Quite the opposite." Li Xu picked up three pens and arranged them parallel on the desk. "Ma Huang Xi Xin Fu Zi Tang primarily targets shaoyin yang deficiency with an exterior cold pattern."
He then picked up a second pen and laid it across the first. "Ling Gan Wu Wei Jiang Xin Tang specializes in transforming cold-fluid."
Finally, he placed the third pen diagonally on top. "And Gui Zhi Jia Huang Qi Tang harmonizes the ying and wei. The three formulas work from different angles, but they all target the same underlying pathogenesis."
Guo Yu looked at the arrangement of pens on the desk, a flash of amazement in his eyes. "Treating the interior and exterior simultaneously, addressing both the pathogen and the upright qi!"
After saying this, Guo Yu eagerly stood up. "Doctor Li, I’m going back right now to treat the patient with this method."
