As he walked, Huang Xu kept sneezing. Every time he sneezed, Liu Bei looked around and remembered the surrounding conditions. Regarding the symptoms, he seemed to have gradually gained some clues.

Even though Guo Zhi knew about the warm scene of Lousang Village, he was still shocked even though he had known about Cui Shangshu's letters.

The giant trees in Liaodong that were piled up into mountains, the Qin bricks and Han tiles scattered everywhere, and the healthy women who were sweating profusely but were smiling. The streets and alleys that were surrounded by walls and flat streets... Lou Sang Shaojun is indeed well-known!

The more I look at it, the more shocked I feel. How much money will it cost!

It is different from Guo Zhi's feelings. Huang Zhong, who is well versed in placing troops and fighting each other, saw another scene.

This is clearly a military formation that is loose on the outside and tight on the inside, full of murderous intent!

My eyes were from a newly built lookout building and I saw the street where I was standing, not too much or too little, just one hundred steps. Even if I was not a sharpshooter who had been through the sun for a hundred steps, a rain of arrows would be enough to kill me! Similar lookout building was everywhere. After careful inspection, I found that there was a lookout building in each courtyard!

Even the double gutters on the left and right sides of the courtyard gate seem to be of great use.

Huang Zhong couldn't help but recall the path when he came. The streets and alleys were crisscrossed, and the bridges and can't even remember the exit!

Please fall into the trap!

"Yi Shi Huang?" Hearing Guo Zhi's shout, Huang Zhong suddenly came to his senses. When had he knelt on the ground, he walked into Liu Bei's house without realizing it.

Then he rushed to Liu Bei and his son who were kneeling opposite him and clasped his fists: "Huang Zhong is rude."

"It's okay. Can you please let the young master look closer?" Liu Bei said with a smile.

"A Xu, go to Shaojun's place." Huang Zhong turned around and said.

"Here." The doll, who is about three years old, has a lot of tutoring every move.

"Shaojun." He knelt opposite Liu Bei, but did not forget to salute him.

"Axu, let me ask you, you kept sneezing on the way when you came. Did you smell some special smell?"

"Yes." Huang Xu nodded slightly.

Liu Bei suddenly felt the truth. Then he asked Huang Zhong: "When Mr. Huang Yishi, when the illness broke out, did he 'cough up and breathe, and the sound of a water chicken in his throat'?"

Huang Zhong was shocked: "That's exactly!"

Huang Zhong’s wife was shocked. She didn’t care about etiquette and stood up and said, “Let’s tell me that every time Ah Xu’s illness occurs, she will have asthma and cough and cannot stop herself. When it is severe, she will have shortness of breath, chest tightness, and vomit sticky phlegm! There are a few times, and she almost holds her breath!"

really.

"Mrs. Huang, don't be anxious." Liu Bei nodded gently: "I have known this disease. It is asthma. There are many discussions and records of this disease in medical books throughout the ages. The "Inner Canon of Internal Medicine" is known as "swinging" and "swinging".

Zhang Zhongjing's "Jinkui Yaolue" in the Han Dynasty is also known as "Shangqi", and it has records of "coughing and rising qi, sound of water chickens in the throat".

Zhu Danxi of the Yuan Dynasty created the name of "Asthma" in "Treatment of Symptoms and Pulse Treatment". It pointed out that "The cause of asthma is that phlegm and fluid remain hidden, forming a stalemate, lurking inside, occasionally causing seven emotions to invade food, or having seasonal wind and cold outside, which binds the skin surface, then the symptoms of asthma will be caused."

Later doctors divided asthma and asthma into two. Yu Tuan of the Ming Dynasty pointed out in "The True Medicine": "Swelling is called breath, and asthma is called sound." It is believed that shortness of breath, opening the mouth and raising the shoulder is a symptom, and panting in and out, and sound in the throat is a symptom, and asthma must be accompanied by asthma, and asthma does not need to be combined with asthma. When the attack is mild, it seems like asthma, but when it is severe, it will cause sudden death.

"Asthma?" This name is right! Huang Zhong hurriedly clasped his fists and stood up: "I dare to ask Shaojun, there is a treatment method."

Liu Bei smiled and nodded: "Yes."

The moment he heard this word, Mrs. Huang couldn't help but burst into tears. Liu Bei's words were like this!

To be precise, Huang Xu's disease is allergic asthma.

Whenever dust mites, pollen, fungi, animal hair dandruff, etc. are inhaled, it may be induced. Sneezing is caused by stimulation of the nasal cavity. Fortunately, the roots are strong and healthy. It is also in midsummer, the scorching sun is roasting, and bacteria are difficult to grow. In the spring and autumn, the plum rain and hazy season, this disease is prone to occur.

Treatment is important.

Liu Bei then called his clan and went to the third uncle's house to ask for the beast bones.

Soon, a few good tiger bones were sent by Liu Wu.

"Third brother, what do you want it to do?" Liu Wu asked curiously.

"Treat the disease." Liu Bei smiled.

"Oh..." Liu Wu nodded in a vague way.

The best treatment for allergic asthma is to isolate allergic inhalers. The principle is very simple, making a mask can solve the problem. However, for different inhalers, if you want to isolate them all, the only way is to use the existing method - activated carbon.

With the help of the adsorption principle of activated carbon, dust mites, pollen, fungi, animal dandruff and other inhalations in the air are filtered.

As far as Liu Bei knew, there are two main methods for preparing activated carbon, fruit shell activated carbon and animal bone mineral blood activated carbon. Of course, the cheapest one is bamboo charcoal.

In order to highlight the complexity of treatment, Liu Bei resolutely used the more precious and rare tiger bones.

He found Su Bo and Liu Bei presented the newly drawn design to him.

"Young boss, what is this?"

"Half-mask." Liu Bei gestured randomly on his face with his hands: "From the nose, it will wrap until the jaw, but it will expose his forehead and eyes."

What Liu Bei wants to do is actually a half-mask gas mask.

"The outer shell is carved with cypress wood and painted. The inner shell is sewn with beef tendon, and I will make the lining." Liu Bei pointed to the round groove in the middle of the mask and said, "We need to make a cross-knob snap to be used to embed the 'beast bone mineral blood cartridge'. How about it?"

"Yes." For craftsmen who can create complex keel rollovers, this small object has no problem at all.

Activated carbon is fired at a high temperature of 1,000 degrees.

This is not a problem. Lao Ya Dun's dragon kiln in Geng Yong's family was as high as 1,300 degrees.

There is no problem with firing activated carbon.

He gave the tiger bones and mineral blood to Geng Yong, and wrote a letter in detail about the firing method. Soon, Geng Yong delivered it himself.

He was very curious about what the use of this black tiger bone was.

After Su Bo carved the wooden mask into. Liangjiang also made a cartridge with small holes on both sides and prepared it.

The cartridge is made of bamboo tubes, with small honeycomb-shaped holes on both ends, and the middle section can be opened. Liu Bei used a fine sieve to screen out the activated carbon burned by the tiger bones with even particles, so he asked his mother to sew a yarn bag with a similar inner diameter to the bamboo tube to make a medicine bag. It is sure that it will not leak, so he carefully stuffed it into the cartridge. Then, aim the cross snaps on the cartridge at the cross slot reserved on the mask and tighten it tightly. The cartridge is combined with the mask. The fine slits are sealed with beeswax, and then stuffed into a soft gauze lining, and a half-mask-type activated carbon gas mask. This is done!

I asked Huang Xu to try it on, and asked Su Boluo to make adjustments. The simple breathing mask was roughly completed.

Liu Bei asked Huang Xu to walk back to the road, and he went to the entrance of the village, without any sneezing!

"Young Master is above, please accept a bow from Huang Zhong!" The eight-foot-foot man bowed his head and bowed.

Liu Bei's small body could not hold on to him. He could only accept this worship.

After helping Huang Zhong up, Liu Bei said again: "Although the animal bone mineral blood medicine bag can relieve cough, it will become ineffective over time. You need to check it all the time to replace it. Why not... Stay in Lou Sang for the time being and wait until the asthma is cured before leaving?"
Chapter completed!