In the hospital, Ma Qiang put on the mask that Lu Qingning helped you sew in an emergency last night. Although it was made of linen, it was better than nothing.

"Ma Lang, what is this?" Li Yan asked curiously as he saw Ma Qiang wearing a mask.

Ma Qiang took off the mask and said, "This is called a mask. It is a kind of medical protective equipment. You see, there are viruses and bacteria in the body fluids of many patients... You can understand it as containing toxins. If others have such places like their mouth and nose,

It is easy to become infected if you come into contact with the body fluids of these patients, but with this mask, you can have an isolation effect.

Although it cannot completely isolate these toxins, it is much better than wearing nothing at all."

Li Xuan thought for a while, clapped his hands and said, "That's true. In fact, my master also asked us to cover our mouths and noses during the epidemic, but we only used cloth towels. How can it be convenient without you?"

Ma Qiang was frightened now. He didn't expect that someone would have discovered these problems in the Eastern Han Dynasty. It's a pity that for various reasons, too many essences of traditional Chinese medicine have not been passed down or summarized by others.

its inherent scientific laws.

"Come on, Lieutenant Zhang Sheng, follow my hands and move your head vigorously. Brother Xianyu, you can help shine the reflection of the bronze mirror into his mouth."

Since there is no such thing as a flashlight, we can only rely on sunlight and a copper mirror to observe the oral cavity. Although the effect is poor, it is still better than nothing.

"Dr. Li, come and see if the teeth here and here are different from ordinary people's teeth."

Ma Qiang used a small wooden stick to gently point to the dental calculus in Zhang Sheng's mouth.

"Of course, this is it?"

"This is one of the reasons for his bad breath. This thing is called dental calculus. It is the product of people who have not cleaned their mouths for many years. Then you look inside and see this circle of yellow and white things. This is tonsil stones, which are human

Many people have bad breath as the main cause, but few people have it as severe."

Ma Qiang somewhat admired Li Yan for being able to endure Zhang Sheng's bad breath without wearing a mask.

But what Ma Qiang admired more was Zhang Sheng. How could they be called tonsils? These densely packed stones were inlaid on them. Rather than calling them tonsils, it would be more appropriate to call them corns.

"What is a stone?" Li Yan asked with some confusion.

Ma Qiang thought for a while and said, "Stones are dirt accumulated somewhere in the human body due to various reasons. Stones are most likely to grow in the liver, gallbladder, kidneys and other parts of the internal organs, as well as the tooth roots and tonsils in the mouth.

Most of the bad breath is caused by dental calculus and tonsil stones. In addition, some people have gastrointestinal problems. But I also asked Zhang Xianwei before, and he can say that the food tastes good and the body is in great shape.

, there’s no problem with your stomach and intestines at all, right?”

Zhang Sheng nodded hurriedly, indicating that Ma Qiang was right.

"Then how to deal with these stones?" Li Yan continued to ask.

"It's very simple, just do it." Ma Qiang began to prepare the equipment.

The method to deal with stones is simple, crude and boring.

"Get it out?" Li Yan's eyes lit up. "Do you know the art of disembowelment, Ma Lang?"

I am a scientist, not a doctor! Ma Qiang couldn't help but vomited in his heart.

Since Ma Qiang has studied and exchanged in Europe and the United States for a long time, and Europe and the United States attach great importance to dentistry, he has also been immersed in a lot of dental knowledge. However, for other medicines, he really only knows some basic common sense. These basic common sense cannot be supported.

What kind of surgery did he do?

"I don't know how to do this... wait... also... Dr. Li, do you know how to do this?"

Ma Qiang was looking forward to it. This Li Yan was Hua Tuo's apprentice. Hua Tuo was most famous for his surgical operations.

"It was my mentor. I wanted to learn it too, but my mentor said I didn't have enough talent and didn't teach it to me."

Ma Qiang couldn't help but roll his eyes, this damn sectarian view.

It's true that although Hua Tuo was killed by Cao Cao in the end, Hua Tuo had disciples. Whether it was Li Jue or several other disciples, they were all alive and well, but Hua Tuo's surgical skills and anesthetic powder were not

They are still lost, and the only explanation is that Hua Tuo did not teach them to any of his disciples.

But thinking about it again, given the understanding of bacteria in this era, Ma Qiang also doubted that these apprentices after Hua Tuo would not be able to successfully perform several surgical operations even if they were able to do so.

This is an era where even tooth extraction can lead to infection and death.

"I heard that Mr. Hua has a medicine called Ma Fei San that can make people unconscious. Is it true? Contact with tonsils can easily make people have the desire to vomit. It is best to make them faint."

As Ma Qiang spoke, he suddenly felt that what he was talking about was not Ma Fei Powder, but more like Wu Yong's favorite Mongolian sweat medicine. Wait, it was a conspiracy.

"It is true that this medicine exists. My teacher has been researching it for many years to make this medicine. Its effect can indeed make people unconscious. My teacher said that this medicine can be righteous if used properly, and evil if used evilly. It cannot be easily leaked, and it also requires a strange thing from the Western Regions.

Flowers are extremely precious, so I don’t have them here.”

Li Yan's words convinced Ma Qiang that this Ma Fei San was indeed made from that kind of evil and beautiful flower.

"Then there's nothing we can do, brother Xianyu, come on."

Ma Qiang shrugged helplessly and motioned for Xianyu to help.

"Oh? It turns out that brother Xianyu can also numb..."

"I'll fight!" Xian Yufu punched Zhang Sheng on the back of the head, and Zhang Sheng fell to the ground with a thud.

"Well, the effect is good, I fainted." Ma Qiang kicked Zhang Sheng. Seeing that Zhang Sheng had no reaction at all, he expressed his appreciation for Xian Yufu's strength.

Li Yan's boss and mentor...it seems like...there's no need for your Ma Fei Powder to exist anymore.

"Come on, help open his mouth, put some sackcloth in there, so that he can't close his mouth, right! Bronze mirror, hurry up! Good light, iron sign... I said Qingcheng, I'm not letting you in

Have you tied the linen in front? You are going to stab him to death."

This may have been the first surgery in history to remove dental calculus and tonsil stones.

This may also be the most violent operation in history.

When the first tonsil stone was forced out by Ma, everyone wanted to vomit. The taste was a hundred times worse than in Zhang Sheng's mouth.

Ma Qiang also found it difficult to breathe. The makeshift mask seemed to be ineffective....

Forget it, let’s fight for the promotion of toothpaste!

Tonsil stones can be removed by just squeezing, but dental calculus is very solid and must be pried. Ma Qiang's skills are not very good. Anyway, after finishing it, Zhang Sheng's mouth was full of blood.

"Okay, can you wake him up quickly?" Ma Qiang put the various stones scraped out on the linen next to him, and then asked Li Yan.

"No problem, I'll do it."

Li Yan was also very excited. He learned a lot this time, whether it was his understanding of stones or the causes of bad breath, and he could have a good discussion with his master in the future.

What Master said is indeed true. You must travel around to gain the strengths of others.

I don’t know where Li Yan pinched Zhang Sheng, but Zhang Sheng woke up immediately.

"Are you awake? Come on, rinse your mouth."

Ma Qiang signaled the boy to hand Zhang Sheng a glass of water. Zhang Sheng took it while touching the back of his head, and spat out the blood and some broken stones.

"What...what's wrong with me?"

Zhang Sheng was still a little confused, looking at the blood he had vomited.

"It's nothing. You will definitely get a little injured when scraping the stone."
Chapter completed!