Fang Yun thought for a moment and made a decision. Taking the famous Hejian school as the springboard and based on some doctors' theories similar to the febrile disease school in Shengyuan continent, he directly wrote a book on the treatment of the plague based on the theory of the febrile disease school over thousands of years.

The plague school has surpassed the typhoid school in the treatment of infectious diseases for thousands of years, and many theories are even subversive. Fang Yun has no time to consider them, and lists those theories that have passed the test of time.

If you write a book on plague, Wu Youxing's on plague is absolutely impossible. This book is the first medical book to systematically study infectious diseases in ancient China.

This book has played an inestimable role in the treatment of infectious diseases for future generations and saved many people.

In ancient China, after the typhoid school, there was a contention between Hejian school and Yishui school. One studied the pathogenesis of fire and heat, and the other focused on the pathogenesis of viscera. Moreover, the two schools were similar in time, collided and communicated with each other, forming a bright glory of medical ethics.

After that, the febrile disease school formed on the basis of Hejian school became a new star in medical ethics.

From the typhoid school to the febrile disease school, after thousands of years, even if the doctors in Shengyuan continent made rapid progress, even if they realized that the typhoid school did not cure all diseases, there was no real febrile disease theory.

The development of medical ethics in Shengyuan continent actually exceeded that in ancient China in the same period, but it has the limitations of the times. Many new theories emerge one after another, but it has not formed a complete system.

"Plague" is a big topic in medical ethics. Fang Yun's self-knowledge ability is limited. If Wu Youxing's theory of plague is completely written, let alone difficult to complete, even if the writing is completed, I'm afraid what he gets is just ordinary medical books, not books of medical ethics, which will not have any power.

There are many aspects involved in the theory of plague. Fang Yun decided to divide the theory of plague into two volumes, and divide all the parts useless to the Lord of plague into the second volume, which will be improved in the future. It is easier to put all the medical knowledge that can restrain the power of plague into the first volume.

In addition, the new "theory of plague" not only contains the original content of Wu Youxing, but also adds the theories and empirical prescriptions of many later medical masters. At the same time, it is mixed with the knowledge of the medical Saint Zhang Zhongjing and the existing system of doctors in Shengyuan mainland, so as to ensure that the "theory of plague" is not imagined out of thin air, but has a solid foundation.

Fang Yun did not immediately write the theory of plague, but made abdominal drafts in the world of strange books, forming many translucent illusory pages and words.

It is not difficult to just write according to the theory of plague in the theory of plague. It is not difficult to even add better theories or empirical prescriptions of later generations. The difficulty is to find the context and combine it with the medical power of Shengyuan continent. While pushing through the old and bringing forth the new, we should also master the scale, so as not to be too exaggerated and unacceptable to doctors, let alone excessively deny the existing medical ethics.

In the world of rare books, Fang Yun repeatedly revised and changed his manuscript, which could not be finalized for a long time.

Fang Yun is far inferior to those ordinary doctors in practice, but his solid theoretical knowledge is definitely above the young doctors. After all, most doctors are limited to the typhoid school, but he has read all the important doctors' classics.

In terms of depth, Fang Yun is not as good as medical scholars, but in terms of breadth, Fang Yun's understanding of medical ethics even exceeds that of medical scholars!

It is the essence of thousands of doctors who support the party.

The key is that the prescriptions or theories in those medical books are proved to be effective, so Fang Yun will not have problems even if it is used directly.

The only problem is that Shengyuan has more abundant medicinal materials. Fang Yun should fine tune all prescriptions of ancient China according to the medical books of Shengyuan.

Fortunately, Fang Yun has considered this problem before and has long compared the properties of basic medicinal materials. It is not difficult to change them.

As time went by, no Jinshi took refuge in the Lord of the plague, and the fog on the mountain was getting thicker and thicker.

Slowly, many Jinshi began to use their official seals to see the time, because it was already 10 a.m. in Shengyuan. In two hours, at noon, the Lord of plague would accumulate enough strength, and all Jinshi would die.

Another quarter of an hour later, Fang Yun still sat motionless.

Zhang Zilong gritted his teeth and said, "the medical way is difficult. I must experience it one by one. Among the people, my medical way is the highest and the medical book is the most powerful. I'll try to break through first, and maybe I can find something!"

Without waiting for others to oppose, Zhang Zilong walked up the mountain alone. A milky medical book appeared on his chest, forming a great force to protect him.

Some doctors sighed softly that Zhang Zilong was indeed a qualified practitioner of medical ethics.

Soon, Zhang Zilong entered the light green fog area. The green fog immediately seemed to be alive and kept pouring on him, condensing into strange shapes, such as stones, wood and other objects constantly attacking the white light formed by the medical books.

However, Zhang Zilong is a pillar of the medical sage family. He can become a scholar in three years at most. This level of green fog can't break through his medical books at all.

At the same time, the circulation of words in medical books records the characteristics of the power of plague.

Zhang Zilong continued to walk inside and soon came to the temporary stockade built by demon man. He didn't meet any enemies, but the green fog was thicker.

At this time, the green fog mostly turns into sharp things such as spears and swords, which are more powerful.

After continuous attack, a few green fog 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 drugs into his mouth. However, his body was hot and began to cough continuously. His eyes were red and his steps could not maintain stability.

The Jinshi behind shouted, hoping he wouldn't go.

Zhang Zilong didn't stop.

Step by step, finally, Zhang Zilong came to the hillside and came to the edge of the thick fog. The green fog here was so thick that the visible distance was only five feet away.

After Zhang Zilong approached, the thick fog in front suddenly exploded, causing a brief disorder. Then the thick fog turned into insects, locusts, crickets, bees, flies, mosquitoes

Countless dark green plague insects came.

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

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

Zhang Zilong's skin instantly turned green.

Zhang Zilong's face changed greatly. He hurried to use another Hanlin treasure sealed into the gallop poem, instantly obtained the blessing of the gallop poem, and hurried down the mountain, coughing while running.

Blood all the way.

Hua Yuqing and his family hurried to release the medical books and rushed to hold Zhang Zilong.

"No... don't die," said Zhang Zilong, closing his eyes and fainting. His medical books were suspended in the air, constantly emitting soft light to drive away the plague in his body.

"Help!"

When the Jinshi with medical books put the medical books outside, he saw that Zhang Zilong's white light was stacked, the green plague force was gradually removed, and his eyes slowly opened.

"Everyone, run away, stay away from the demon mountain, the farther the better. At most one hour, the power of the plague Lord will sweep the hunting ground, and we will die! Run away, the power of the plague is too strong!" Zhang Zilong's eyes were full of despair.