After helping Wu Youhuan prepare the necessary medicines, Gongsun Yu followed their team to Shuofang City.

According to historical records, Shuofang City was built in the reign of King Xuan of Zhou, Yin Jipu cut down the Lynx, and built Shuofang City after the victory to resist the Lynx. Later, Shuofang City was occupied by the dog Rong and renamed "Shiben City". In the Qin Dynasty, Qin Shi Huang sent the general Meng Tian to the north to attack the dogs, recover the Hetao land, and rebuild the Shuofang City. At the end of the Qin Dynasty, the Xiongnu took the opportunity to invade the Hetao and continued to invade the south. In the Han Dynasty, Emperor Wu of the Han Dynasty sent the general Wei Qing to attack the Xiongnu to recover Henan, and sent the general Su Jian to build Shuofang City and set up Shuofang County.

Today's Shuofang City is quite large, with 50,000 soldiers. When Gongsun Yu and the others arrived, Li Guangli had already set off with his 60,000 cavalry and 70,000 infantry for a month. What Gongsun Yu has to do now is to assist Wu Youhuan in improving the treatment center for the wounded in the city. Although there are places to treat the wounded, the scale is small and there is a shortage of medicines and equipment.

Gongsun Yu proposed to boil gold sore medicine first, the formula of this gold sore medicine was seen by Gongsun Yu in the medical book given by his uncle, and now he can take it out and use it. Fighting a war will inevitably have knife wounds and arrow wounds, and if you don't apply gold sore medicine immediately, it is not good for future recovery, and if you become infected and become gold sore spasm, that is, tetanus, it will be more troublesome, and at worst, there is a risk of life.

So Wu Youhuan ordered all the doctors to work on the prescription skills, and they were unified under the command of Gongsun Yu. They first grind herbs such as musk, camphor, borneol, blood exhaustion, catechu, frankincense, and myrrh into powder, and then boil the three flavors of lard, yellow wax, and rosin, and after cooling, pour several medicines that were previously ground into powder together, stir well, and then find porcelain to put it up. This is the gold sore medicine, take it to the front line, if you are injured in battle, apply this medicine to the wound, and it will heal on the same day.

After another ten days, sick soldiers began to be sent back to the treatment center in Shuofang City one after another. One of the characteristics of these sick soldiers is that they have a high fever, and some even have blood in their stools. They were not injured in battle, but after entering the desert, they were caused by the fatigue of the long journey, coupled with the erosion of the desert wind and sand, and the lack of adaptation to water and soil.

At first, it was just fever, general malaise, fatigue, loss of appetite, headache, abdominal discomfort, etc.; Slowly, the condition worsened, the body temperature began to rise, chills, little chills, sweating little, and later developed blood in the stool.

The army continued to advance until it reached the Yuwu water in the territory of the Xiongnu, and these sick soldiers slowly fell behind, and were collected by the rear and sent back to Shuofang City for treatment.

Gongsun Yu immediately organized various doctors to diagnose and treat the sick soldiers, and when he checked the pulse, he found that their pulses were relatively tight, their bodies were hot, they were afraid of wind and cold, and their tongues were thin and white, so they were diagnosed with typhoid fever. Gongsun Yu then ordered the medicine to be fetched, washed and boiled into a cinnamon branch soup composed of cinnamon branches, white peony, moxibustion licorice, ginger and red dates, and gave it to the sick soldiers to drink.

This is Guizhi Tang, a special medicine for the treatment of typhoid fever, which Gongsun Yu saw in Yi Wuji's medical records, and now it is also being used in life.

After drinking a few doses, the soldiers rested for two or three days, so they all said that they would go to the front again. Gongsun Yu hurriedly persuaded them to rest more before they recovered, and besides, the army had been gone for many days, and the battle was over when they wanted to catch up. They were surprised by the soldier's answer, and their statement was that the army was not like going to war, but like going to the mountains and rivers, and it was less than forty miles a day's march, and now they had time to chase after it. Wu Youhuan on the side shook his head after hearing this, and sighed that when he fought with General Li Ling, it was a hundred miles a day.

After more than half a month, I saw that the brigade returned to Shuofang City one after another, and Li Guangli, the general of the Second Division, and Lu Bode, the commander of the strong crossbow, also came back one after another. But I feel that the atmosphere is very bad, anyway, everyone is silent, the nerves are tense, and there is no smile, very embarrassed. Li Guangli and Zhao Ponu immediately set off for Chang'an without taking any rest, and the brigade also went back, leaving only those soldiers who were guarding Shuofang City and the wounded soldiers who needed to be treated.

Wu Youhuan learned from the officers and soldiers who came back that after the original brigade went deep into Mobei, they could not find the Huns, not to mention the main force of the Huns, and there was not even a single figure. In this way, the army slowly marched towards the royal court of the Xiongnu, and finally found the main force of the Xiongnu on the south bank of Yuwushui, not far from the royal court.

It turned out that Li Guangli's advance was too slow, and he had already made a detailed report to the Huns and Hou Shan Yu. After hearing the letter, Shan Yu moved the old and weak women and livestock to the north bank of Yuwu River, and led 100,000 elite soldiers to garrison the south bank of Yuwu River to wait for the Han soldiers. As soon as Li Guangli's army arrived, the two fought several times, killing and wounding each other, and Li Guangli saw that he could not win, so he turned around and retreated south. The Hun cavalry then chased after him, Li Guangli fought and walked, fought for more than ten days, and there was no victory, coinciding with the strong crossbow captain Lu Bode to lead the troops to meet, the two armies struggled to repel the Hun cavalry, and the Marquis Shan Yu Nai led the people to the north.

The two sides were considered to have reached a tie in this way, but Li Guangli was very good at escaping, and fled when he saw that the situation was not good, but fortunately there were no casualties. After Wu Youhuan heard the story, he shook his head helplessly, the imperial court spent a lot of money, and these were all squeezed out of the people's harsh taxes and miscellaneous taxes, and it was actually a tie, and there was no benefit. Gongsun Yu did not care much about the war, but devoted himself wholeheartedly to the treatment of the wounded and sick.

Although there are not many wounded and sick this time, there are many types of injuries and diseases, such as knife wounds and arrow wounds, although they have used gold sore medicine before, but wound infections need to be disinfected; Some of them were broken by falling from a horse while escaping, and they needed to be bone-corrected; Some of them have Tianxing disease and need to be isolated and treated; There are also malaria, bloody diarrhea, cholera, etc., which are so busy that Gongsun Yu is busy all day long.

Fortunately, Gongsun Yu has seen a lot of medical records before, and he can prescribe the right medicine for various symptoms. Especially in dealing with Tianxing disease, there is also a secret recipe in the diagnosis book that is easy to indefinitely, which can be used to eliminate the disease.

After settling the wounded and sick, Wu Youhuan and his logistics team were going back to Chang'an, and Gongsun Yu also followed Wu Youhuan back to Chang'an City, ending the task of supporting the front. Although Gongsun Yu did not go to the front to participate in the battle, in the past few months in the barracks, he has come into contact with the wounded and sick every day, and he is very touched when he sees the painful appearance of the wounded soldiers.

When parting, Wu Youhuan wanted to recommend Gongsun Yu to the military camp as a medical officer, that is, a full-time military doctor, but Gongsun Yu politely rejected Wu Youhuan, saying that he only wanted to return to the Boji Medical Center and devote himself to treating the common people. After hearing Gongsun Yu say this, Wu Youhuan did not force him to stay, and told him that he would go to him if he needed his help in the future, and Gongsun Yu also readily agreed.