Fang Yun pondered for a moment and made a decision, using the famous Hejian School as a springboard, based on some medical theories in the Shengyuan Continent that were similar to the Warm Disease School, spanning thousands of years, to directly write a book on the treatment of plagues based on the theory of the Warm Disease School.

The school of distemper surpassed the typhoid school for thousands of years in the treatment of infectious diseases, and many of its theories were even subversive, so Fang Yun did not have time to consider them, and listed those theories that had stood the test of time.

If you write a book dedicated to the treatment of plague, Wu Youxing's "Treatise on Plague" is a book that absolutely cannot be skipped, and this book is the first medical book in ancient China to systematically study infectious diseases.

This book played an immeasurable role in the treatment of infectious diseases in later generations, and saved many people.

In the ancient Chinese country, after the typhoid school, there was a contention between the Hejian school and the Yishui school, one studied the fiery pathogenesis, and the other focused on the visceral pathogenesis, and the two factions were similar in period, colliding and exchanging with each other to form a brilliant medical path.

After that, the school of warm disease, which was formed on the basis of the Hejian school, became a new star of the medical path.

From the Typhoid School to the Warm Disease School, after thousands of years, no matter how fast the doctors of the Shengyuan Continent progressed, even if they realized that the Typhoid School was not a cure-all, there was no real theory of warm disease.

The medical Tao has been progressing, and the development of the Shengyuan Continent actually exceeds that of the Shengyuan Continent in the same period, but after all, there are limitations of the times, and many new theories emerge one after another, but they have not formed a complete system.

"Plague" is a big topic in the medical Tao, Fang Yun knows that his ability is limited, if he writes Wu Youxing's "Treatise on the Plague" in its entirety, not to mention that it is difficult to complete, even if the writing is completed, I am afraid that what he will get is just an ordinary medical book, not a book of medical Taoism, and there will be no power.

"Treatise on Plague" involves many aspects, and Fang Yun decided to divide "Treatise on Plague" into two volumes. It is easier to divide all the parts that are useless to the Lord of the Plague into the second volume, and to complete them later, and to put all the medical knowledge that can restrain the power of the plague into the first volume.

In addition, the new "Treatise on the Plague" not only has the content of Wu Youxing's original work, but also adds the theories and prescriptions of many medical masters in later generations, and at the same time mixes the knowledge of the existing system of the medical saint Zhang Zhongjing and the doctors of the Shengyuan Continent, ensuring that the "Treatise on the Plague" is not imaginary out of thin air, but has a solid foundation.

Fang Yun did not immediately write the "Treatise on the Plague", but wrote the manuscript in the world of strange books. Numerous translucent illusory pages and words are formed.

If it is just written according to the "Treatise on Plague", it is not difficult, and it is not even difficult to add better theories or prescriptions in later generations to it, but the difficulty is to find the context, combine it with the medical power of the Shengyuan Continent, and at the same time bring forth the new, it is also necessary to grasp the scale, so as not to be too exaggerated and unacceptable to the people of the doctor, let alone overly deny the existing medical Dao.

In the world of strange books. Fang Yun repeatedly revised and changed his draft several times, but he couldn't finalize it for a long time.

Fang Yun is far inferior to those ordinary doctors in terms of practice, but his theoretical knowledge is solid. After all, most of the medical families are now confined to the typhoid school, but he has read all the important medical classics.

In terms of depth, Fang Yun is not as good as a doctor. But in terms of breadth, Fang Yun's understanding of medical Taoism is even better than that of the great Confucian!

What supports Fang Yun is the essence of thousands of years of doctors!

The point is. The prescriptions or theories in those medical books have been verified and effective, so even if Fang Yun is used directly, there will be no problems.

The only problem was that the medicinal materials in the Shengyuan Continent were more abundant, and Fang Yun had to fine-tune all the prescriptions of the ancient Huaxia Kingdom according to the medical Taoism books of the Shengyuan Continent.

Fortunately, Fang Yun had considered this problem before, and he had already compared the medicinal properties of the basic medicinal materials, and it was not difficult to change them.

As the minutes passed, not a single Jinshi took refuge in the Lord of the Plague, and the dense fog on the mountain became more and more and thicker.

Slowly, many Jinshi began to use the official seal to keep looking at the time, because it was already ten o'clock in the morning in the Shengyuan Continent, and in another two hours, at noon, the Lord of the Plague would accumulate enough strength, and all Jinshi would definitely die.

After another quarter of an hour, Fang Yun still sat motionless.

Zhang Zilong gritted his teeth and said: "The medical road is difficult, and you must experience it one by one." Among all the people, my medical realm is the highest, and the medical book is the most powerful, I will try to break through first, maybe I can make some discoveries!"

Without waiting for others to object, Zhang Zilong walked towards the mountain alone, and a medical book with a milky white light appeared on his chest, forming a great force to protect him.

Some doctors sighed softly, Zhang Zilong is indeed a qualified practitioner of medical Taoism.

Soon, Zhang Zilong entered the faint green mist area, and the green mist immediately seemed to be alive, constantly surging towards him, condensing into strange shapes, such as stones, wood and other items constantly attacking the white light formed by the medical book.

But Zhang Zilong is the pillar of the medical saint family, and he can become a Hanlin in three years at most, and this kind of green mist of Cheng Dù cannot break his medical book at all.

At the same time, the text circulated in medical books, recording the properties of the power of the plague.

Zhang Zilong continued to walk inside, and soon came to the improvised village of the demon barbarians, and did not encounter any enemies, but the green mist was thicker.

At this time, most of the green mist turned into spears, swords and other powerful things, which were even more powerful.

After continuous attacks, a very small amount of green mist finally penetrated the protection of the medical book and entered Zhang Zilong's body.

Zhang Zilong's body trembled slightly, then coughed violently, and hurriedly stuffed various medicines into his mouth, but his body was hot, and he began to cough constantly, his eyes were red, and his gait could not be steady.

The Jinshi in the back shouted, hoping that he would not leave.

Zhang Zilong did not stop.

Step by step, in the end, Zhang Zilong came to the mountainside and came to the edge of the dense fog, where the green fog was so thick that the visible distance was only five zhang away.

After Zhang Zilong approached, the dense fog in front of him suddenly exploded, and there was a brief disorder, and then the dense fog turned into insects surging over, locusts, crickets, bees, flies, mosquitoes, ......

Countless dark green plague bugs pounced.

Zhang Zilong immediately released a Hanlin Wenbao to form a powerful Hanlin protective poem to protect himself, but in just a breath, the protective power formed by the Hanlin Wenbao was completely broken by the plague worm.

The power of the plague worm invaded Zhang Zilong's body.

Zhang Zilong's skin turned green in an instant.

Zhang Zilong's complexion changed greatly, and he hurriedly used another Hanlin Wenbao sealed in the swift poem, instantly received the blessing of the swift poem, and quickly ran down the mountain, coughing while running.

Bloodstains along the way.

Hua Yuqing and other medical family members hurriedly released medical books and rushed over to support Zhang Zilong.

"No...... Don't send to death. After Zhang Zilong finished speaking, his eyes closed and he fainted. His medical book floated in mid-air, constantly emitting a soft glow to drive away the plague power in his body.

"Help!"

The Jinshi who had a medical book released the medical book together, and saw that the white light on Zhang Zilong's body was layered on top of each other, and the green plague power was gradually expelled, and he slowly opened his eyes.

"Everyone, run away, stay away from the demon mountain, the farther the better. In an hour at most, the power of the Lord of the Plague will sweep through the hunting grounds, and we will definitely die! Escape, the power of the plague is too strong!" Zhang Zilong's eyes were full of despair. (To be continued......)