"My lord, this is the medicine jar that I often boil medicine for Xu'er at home, I don't know how my son is now?" Huang Zhong put the medicine jar on the stone table and said with some restraint.

Although Huang Zhong has a good ability, but because of his son Huang Xu's illness, he has not been well developed, so he is still a first-order white body, and Qin Feng is a famous official of the Han Dynasty, so Huang Zhong is very restrained in his heart.

"Don't worry, he's doing well now, isn't he discussing martial arts with my guards." Qin Feng Nunu couldn't help but smile slightly at the two who were discussing on the grass.

Huang Zhong turned his head and saw that sure enough, wasn't the thin young man who had a good time with Dian Wei his frail and sickly son, how long had it been since he had seen his son so happy, Huang Zhong couldn't help but smile at the corner of his mouth after seeing this.

"Thank you for saving my son, but in the future, if you have any orders, as long as you say a word, you will do it in the sword mountain and the sea of fire!" Huang Zhong said with some emotion, his eyes were full of excitement.

After seeing that his son could have hope of living, the fame and fortune in Huang Zhong's heart gradually emerged, as the so-called learned martial arts were sold in the emperor's house, and the martial arts in ancient times were honed by them day by day.

It can be said that no one doesn't want to compete for fame when he is in the arts and martial arts, and the original intention of learning these is not to get out of the world.

Now that the Han Dynasty is weak, it can be said that the reputation of Youzhou is very good, not only the people, but also those Youzhou officials, are invisibly tempting themselves to be such unsuccessful scribes and martial artists, and now if he can worship Youzhou, he Huang Zhong still takes a big advantage.

"You're welcome, Brother Hansheng can just call me Zhicai like Brother Zhongjing!" How could Qin Feng not see Huang Zhong's thoughts, but he didn't point it out, it would be good to know the meaning of some things, and he could also give the other party a step down.

"How dare this...."Huang Zhong hurriedly shook his head and excused himself, he wanted to worship Youzhou, but it was because of this that he should know more about etiquette.

"It's okay, Brother Hansheng, is this the medicine jar in your house?" Qin Feng didn't want to argue with Huang Zhong anymore, but most of the people who could leave a name in history were so modest that Qin Feng didn't even want to speak.

After Qin Feng finished speaking, he picked up the black medicine jar on the table and observed it carefully, and knocked a few times from time to time to smell the residual smell on it.

"That's right, this is the medicine jar in my house, and I've been using it for several years, and I've been using it since the day my son got sick." Huang Zhong nodded slightly and said, he couldn't understand why Qin Feng was so interested in the medicine jar in his hand.

"Brother Zhongjing, didn't I just say the other two important things about boiling medicine? Now you can see how this medicine jar is different from other medicine jars! Qin Feng put the medicine jar in his hand in front of Zhang Zhongjing and said with a smile on his face.

Zhang Zhongjing couldn't help but be stunned after hearing Qin Feng's words, he thought that Qin Feng would not mention this matter again, but what he didn't expect was that Qin Feng actually took a ready-made sample for himself to understand and think.

"Brother Zhicai, there is nothing too strange about this medicine jar, it looks like the medicine jar we usually use, there is no difference!" Zhang Zhongjing said with some doubts, his eyes were full of thought, he didn't believe that Qin Feng would say that there was something wrong with this medicine jar for no reason.

"In fact, now our medicine jars are made of clay, but the medicine jars are not as good as other utensils, he is already boiling medicine for those who are weak and sick, as the so-called and entering, such as some medicines can both cure people and harm people." Qin Feng said slowly again, his eyes full of essence.

"In fact, there are many impurities in the soil, some of the soil can breed herbs to cure people, but some of the sand can grow poisons that can seal the throat with blood!" Qin Feng said again, "Brother Zhongjing should be able to know this, different soils can breed different herbs. ”

"Hiss~" Zhang Zhongjing couldn't help but gasp, how could he not have thought of such an idea before, yes, some different soils can breed different herbs, that is to say, some soils are born with strong toxicity.

Of course, the utensils made of this clay will also infiltrate the poison into the life around them, and it can be said that this kind of utensils is like a very hidden and endless chronic poison, if you take it lightly, then you will eventually be slowly poisoned by your own utensils.

"What Brother Zhicai means is that this medicine jar is actually poisonous, so the potions that are boiled have become harmful things!" Zhang Zhongjing said in disbelief after thinking of this, his eyes were full of surprise, he didn't think that one day the medicine he prescribed would also become poison.

"That's right, the raw material of this medicine jar, that is, the soil used to make this medicine jar, should contain cinnabar, but it is very small but it is still very fatal to the patient." Qin Feng said with a serious face.

At this time, Huang Zhong, who was still in the clouds, finally reacted, it turned out that his son's illness was not because of the herbs and physique, but because the medicine jar he used was actually problematic, if he hadn't met Qin Feng, he would have killed his son without knowing it.

"Cinnabar? Brother Zhicai, is cinnabar the kind of sand that is a little vermilion? Zhang Zhongjing thought for a while and then said slowly, "There are indeed several places in the vicinity of such sandy soil, and the herbs and grass trees and flowers that grow on it contain a lot of toxins. ”

"That's right, some ceramics may not be so beautiful because of a single color, but in their raw materials, like adding another different color of clay, the fired utensils will become extraordinarily beautiful, but they will also contain a lot of toxicity." Qin Feng said with a smile on his face.

It turns out that this is the case, so this medicine jar is already poisonous, so Brother Huang uses this medicine jar to boil medicine, and the medicinal properties in it will also be counterinfected with a kind of toxicity, if it is a normal person who drinks a small amount, it may be fine, but if it is a patient like Huang Xu, it is different. Zhang Zhongjing also nodded slightly and said.

In the past, he taught others about medicine, but today he is taught by others, which is strange and familiar, but more often than not, it is surprising.

Originally, I thought that Qin Feng's medical skills were not much better than his own, but who knew that Qin Feng's words had been frantically testing on the edge of his cognition for so long, and there was a feeling in his heart that Qin Feng must still know some unknown secrets, but such secrets exceeded the bottom line of the understanding of most people in the Han Dynasty, so Qin Feng never opened his mouth to teach these things.

"Thank you Brother Zhicai and Brother Zhongjing for solving my doubts, otherwise my son would almost let me kill myself." Huang Zhong couldn't help but shake his head after hearing this, if Zhang Zhongjing was not a well-known miracle doctor, I am afraid that Huang Xu would have beaten him for an unknown number of times when he was seriously ill.

After all, Huang Xu's illness has not been treated effectively, if he does not doubt or even resent Zhang Zhongjing in his heart, it is impossible, after all, this is human nature, for some unknown things, people will always be the one who is in chaos.

"Brother Huang is polite, he still can't find out the reason because he is not good at studying arts, so Huang Xu's condition is getting heavier and heavier, this matter should be my fault!" Zhang Zhongjing arched his hand at Huang Zhong and said with some shame.

After all, this kind of thing should also be for himself, if he didn't blindly focus on the medicinal materials, he might have found the root of the problem long ago, and Huang Xu would not have suffered so many crimes, this is a doctor's condemnation of himself, although he knew that Huang Zhong would not blame himself, but his heart was still very difficult.

"Brother Zhongjing doesn't have to be like this, this medicine jar was bought by myself a few years ago, and I can't blame Brother Zhongjing for this matter, after all, Brother Zhongjing's medicinal materials can indeed cure diseases, but it was because of my temporary good looks that I almost buried my child's life." After hearing Zhang Zhongjing's words, Huang Zhong hurriedly shook his head and said.

This was originally his own business, why does he feel that a lot of responsibility is on Zhang Zhongjing's body now.

"Okay, don't argue, now that Brother Hansheng's son's illness has also found the source, as long as you change a medicine jar and boil, and then carefully adjust the ideal, Huang Xu will soon return to his previous health." Qin Feng looked at the two people who were constantly fighting for the pot in front of him, and couldn't help but feel a little funny and said slightly.

"That's very good, but Brother Zhicai, how can you tell that this medicine jar is poisonous?" Zhang Zhongjing nodded slightly, and once again said the question in his heart, Huang Zhong couldn't help but cast a curious look, after all, Huang Zhong would not dare to touch such a vessel in the future.

"It's very simple, first of all, its color, as long as the color is more peculiar, the more likely it is that such things contain toxins, and the weight of impurities in the medicine jar is heavier than the ordinary medicine jar." Qin Feng said slowly, "There is also the smell, because this medicine jar itself is toxic, so its smell is more pungent, but if you don't smell it carefully, you can't smell it at all." ”

With Qin Feng's explanation, Zhang Zhongjing and Huang Zhong's faces couldn't help but show an expression of sudden realization, this kind of identification method is simple and easy to remember, maybe they will try it for a period of time in the future, of course, these are all words that can be ignored for the time being.

Qin Feng looked at the two people in front of him who suddenly realized, slowly picked up the boiling medicine jar with a handkerchief, poured the decoction into a large bowl, and then got up and walked in the direction of Huang Xu.....