Although Zhao Yu was covered with a face towel, he was almost smoked as soon as he entered the cabin, and the smell here was too unpleasant.

"Your Highness, the medicinal herbs are here, you should be careful of your step." Hao Yuntong said cautiously holding the lantern high.

"Okay, you lead the way." Zhao Yu nodded and said, he took a few deep breaths and gradually got used to the smell and light here, and looked back at Ni Liang who was following behind him A lot more relieved, and continued to move forward with Hao Yuntong.

Zhao Hao walked around and around, the warehouse was stuffed to the brim, it was like a grocery store, which included rice, bacon, dried fish, as well as all kinds of gold and silver utensils and medicinal materials, silk and miscellaneous goods, of course, the most of which were bags of tea and porcelain, leaving only narrow passages in between, like a labyrinth. He is small and can shuttle freely, but Ni Liang is more difficult.

Clear-eyed people understood at a glance that this was a cargo ship that had just been loaded with goods and was ready to sail, and it must be one of the many ships robbed in Quanzhou. But thankfully, the patients on board don't have to worry about their daily necessities and can get life-saving medicines.

The goods may belong to a number of merchants, divided into several areas and stacked, which also brings them difficulties in finding, every place they need to pick up the package to inspect, and they have not found what they need in a few places, but Zhao Yu is not without harvest, Ni Liang has a bunch of various items he selected in his arms, but there is no one medicinal herb.

"Your Highness, let's take a look over there!" Hao Yun said that he was a little disappointed, wondering if he was wrong, this prescription was not prescribed by His Royal Highness King Wei at all. However, it was also helpless, Liu Huang was one of the first to fall ill, although he received special care and took the medicine prescribed by Chen Xiang himself, but he was getting heavier and heavier, and he was already bedridden, and according to Hao Yuntong's experience, it would not take a few days to 'enter the sea'.

Early this morning, he checked Liu Di's pulse, but found that his condition had been greatly reduced, and after inquiry, he learned that His Royal Highness had changed the medicine yesterday, so he had to come to the door to seek advice and the whole ship's 'general mobilization' to dry the deck. But after lunch, Liu Huang's condition recurred, with a constant dry cough, and thick phlegm stuck in his throat but he couldn't cough it out, causing difficulty breathing and almost suffocating to death.

It is said that it can be treated with expectorant drugs such as licorice, but there is no one on the ship, so Hao Yuntong can only ask His Highness for help again, hoping that a miracle will happen. Judging from His Highness's behavior now, it seems that he doesn't know medical skills at all, otherwise why don't he even know the commonly used medicinal materials, and he still needs to keep asking him......

"yes, that's it." Just when Hao Yuntong was about to give up, he suddenly heard His Highness say, only to see him holding a white and shiny thing in his hand, sniffing it, and licking it again.

"Your Highness, it's wrong!" Hao Yuntong took a close look at the lantern and said, "This is light sand that can only be used externally, and it should be purple sand for internal use." ”

"Oh, and the purple sand?" Zhao Yu actually didn't know what the things in his hands were called in this era, in his previous life, they were called ammonium chloride, which can be equipped with electrolyte, and has a corrosive effect, which is often used as a rust remover, and has a role that can be used as an expectorant, which is also a commonly used Western medicine. Because he had been in contact with it a lot in his previous life, he knew that it was only in his natural state now, and the ones he used at that time were all synthetic, so when he heard that there was still purple sand, he asked with some uncertainty.

"Your Highness, this is the case!" With the target in mind, Hao Yuntong quickly turned out a purple honeycomb crystal.

"Well, it's not." Zhao Yu took it and sniffed it, and said with a frown. He also knows this thing, it is the 'purple salt' that has been blown up by some liars, and I don't know how many times it has been picked up by netizens.

"Your Highness, even if this light sand is used in medicine, it needs to be concocted, otherwise it will be poisonous." Hao Yuntong was shocked when he saw that His Highness didn't care, and hurriedly prompted. He understood that if he ate someone to death, His Highness would be safe, and the board would definitely be slapped on his ass.

"This king understands, but I don't know how you concoct it?" Zhao Yu found what he needed, and asked Ni Liang to fill half a bag and ask casually, of course he knew that Western medicine needed to be purified, and the crude medicine collected by Chinese medicine also had to be made into mature medicine in various ways before it could be used, but he was just curious about how the 'ancients' did it.

"Oh, according to the processing method recorded in the "Tang Materia Medica", it should be smashed into small pieces, dissolved in boiling water, sedimented and then desilted, poured into a porcelain basin with vinegar, heated and evaporated through water, in order to remove its poison, at any time the white floating frost on the liquid surface is fished out, and it is dried on white paper, which can treat dysentery, menstruation, eyes, polyps, warts, boils, scrofula, carbuncles, sores, choking diaphragm and other symptoms."

"Oh, that's right!" Zhao Hao smiled and said nothing, his chemistry is not good, but he also knows that ammonium chloride will volatilize when heated to Baidu, and then react with vinegar, its chemical properties have long changed, and the so-called toxicity has disappeared, of course, there is no medicinal value.

The things were found, and Zhao Yu immediately requisitioned the pharmacy of the doctor who accompanied the ship to prepare medicines, of course, expelled all the people, not because he was afraid that they would steal the arts, but in addition to worrying that they would not dare to eat it when they saw it, there were other reasons. In fact, his method of purifying ammonium chloride is very simple, as long as the raw materials are smashed, ground into powder, sieved and put into warm water to accelerate the precipitation, and then the solution is dried to get what it needs.

Naturally, there is no need for Zhao Yu to do the manual work, and there is still a strong laborer like Ni Liang when the doctors are not there, and there is no risk of 'leaking'. But after the menial work, there was a long wait, which was not urgent, and the waiting time was very boring, so he visited the pharmacy.

"Your Highness, this is camphor, don't taste it." Seeing that Zhao Hao opened the medicine cabinet and looked through it, and picked up the medicine and touched and smelled it, Ni Liang was worried that he would eat it and hurriedly reminded him.

"Oh, you know the medicine?" Zhao Yu looked up at Ni Liang and said with some surprise.

"Hehe, Your Highness, those of us who practice martial arts will inevitably break our muscles and bones, and we often need to dispense medicine to heal our injuries, so we know some fur." Ni Liang said with some embarrassment.

"Oh, I see, so what's this?" Zhao Yu suddenly woke up and said, no matter what era martial artists are the best bone-setting doctors, won't Huang Feihong still open a pharmacy? After thinking about it, he picked out a few herbs and asked, and Ni Liang could say it accurately, which made him even more convinced that this child was just honest by nature, but he was by no means a fool, and he was a talent after training.

"Your Highness, this is earth nitrate, you can't touch it." Seeing that Zhao Yu was about to reach out and take it again, Ni Liang hurriedly stopped him.

"Dirt?! This can also be used in medicine. "Zhao Yu really opened his eyes today, the pharmacy of the ancients can be used as a chemical laboratory, and the raw materials are quite complete, he picked a little with a medicine spoon and put it into the fire, and immediately raised a flame, indicating that he was right.

"Your Highness, be careful, this will catch fire." Zhao Hao's actions startled Ni Liang and stepped forward to pull him away.

"Hehe......" Zhao Yu was moved and helpless when he saw this, according to his psychological age, he must be more mature than this eighteen or nineteen young man, but according to his biological age, he is still a child in his eyes, the relationship between the two is really difficult to explain, each other treats each other as children, and the object that needs to be taken care of, but it is more like the relationship between the blind and the lame, and the advantages can complement each other......

"It's done!" After tossing for half an hour, a basin of muddy water finally turned into crystals, Zhao Hao said with a smile.

"Your Highness, do you want to send it to Lord Liu?" Ni Liang looked at the smiling Highness and asked stupidly.

"You...... That's not enough, you go get some flour. Zhao Yu was stunned for a moment, then understood what it meant, shook his head and said, he didn't know what the consequences would be if he ate this thing, and he had to hide it in the future.

Ni Liang went out to look for flour, and Zhao Yu saw that the purified sand had crystallized and dried, but this time he didn't dare to grab it casually like before, this ammonium chloride would kill if he ate too much of it. He found the small copper scale in the pharmacy and pondered for a while to figure out how to use it, weighed the ammonium chloride into several parts, and divided one into several parts, estimating the weight of a small part to about one gram.

After Ni Liang found the flour, Zhao Yu used the flour to wrap a small portion of ammonium chloride into a pill the size of a corn kernel, and after making fifty grains, he put it away, and packed the rest away.

After everything was cleaned up, Zhao Yu let Hao Yuntong, who was anxious to wait, come in, counted out six pills and asked him to send them to Liu Huang, and told him to only take two pills at a time, taking them at an interval of four hours, and don't stop taking the decoction, just stagger the time, and pay attention to the diet - no more salt.

Looking at Hao Yuntong who nodded like a chicken pecking rice, Zhao Hao was a little weak-hearted, everything he did could be said to be crossing the river by feeling the stones, whether it could be effective or not was really bottomless in his heart, now Liu Huang is like a guinea pig in the laboratory, and the consequences are unpredictable. And even if he knows that he has not escaped this catastrophe in history, but now that he is involved, if he still dies according to the script, he still has a burden in his heart.

This night, Zhao Hao also didn't sleep well, except for the nightmare, he paid attention to the movement of the cabin, and he was relieved until dawn when he didn't hear the sad sound, which showed that Liu Huang was not 'poisoned' to death by himself, and he was still alive, and his guilt suddenly lightened a lot......