Along the way, Huang Xu sneezed constantly. Every time he sneezed, Liu Bei looked around and remembered the situation around him. Regarding the symptoms, it seems that there are some eyebrows gradually.

The lively scene in Lousang Village, Rao is Guo Zhi already knew in Cui Shangshu's letters, and he was still shocked.

Mountains of giant trees from Liaodong, and Qin bricks and Han tiles scattered everywhere. There are also healthy women who sweat like rain, but all of them are smiling. The alleys that are surrounded by walls, and the paved streets...... Lou Sang Shaojun really deserves his reputation!

The more I looked, the more shocked I became. How much money does it cost!

It is different from Guo Zhi's feelings. Huang Zhong, who was well versed in arranging 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 killing machines!

From a newly built watchtower, I saw the middle of the street where I was standing, no more, no less, exactly a hundred steps. Even if it is not a sharpshooter who pierces through Yang in a hundred steps, a rain of arrows is enough to kill! Similar watchtowers can be found on all sides. After a closer look, it was found that every house actually had a watchtower!

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

Huang Zhong couldn't help but recall the path in his mind. The streets and alleys are vertical and horizontal, the bridges and canals are flying, and I can't remember the exit!

Give somebody a dose of his own medicine!

"Huang Yishi?" Hearing Guo Zhi's shout, Huang Zhongcai suddenly came back to his senses. When did he kneel on the ground, he unknowingly walked into Liu Bei's house.

Then he hugged his fists at Liu Bei's mother and son, who were kneeling opposite, and said, "Huang Zhong is rude." ”

"It doesn't matter. Can you please take a closer look? Liu Bei said with a smile.

"Ah Xu, let's go to Shaojun." Huang Zhong turned around and said.

"Whoa." It's only a three-year-old doll, but it's quite tutored.

"Shaojun." Kneeling opposite Liu Bei, he didn't forget to salute.

"Asu, let me ask you, you kept sneezing on the way here. Did you smell something special? ”

"Yes." Huang Xu nodded lightly.

Liu Bei suddenly had a bottom. This then asked Huang Zhong: "Huang Yishi, when Ling Gongzi's illness attacked, did he 'cough and breathe, and the sound of water chicken in his throat'." ”

Huang Zhong was shocked: "That's right! ”

Huang Zhong's wife on the side couldn't help but be surprised. didn't care about the politeness, so he got up and said: "Let Shaojun know that every time Ah Xu gets sick, he is wheezing and coughing, and he can't stop himself." When it is severe, shortness of breath, chest tightness, vomiting sticky phlegm! There are still a few times, almost holding your breath! ”

Really.

"Mrs. Huang, don't worry." Liu Bei nodded lightly: "I already know all about this disease." It's asthma. There are many medical books of the past dynasties on this disease, and the "Neijing" is known as "stridor" and "wheezing". ”

In the Han Dynasty, Zhang Zhongjing's "Jin Kui Yaolu" is also known as 'Shangqi', and there is a record of "coughing and breathing, the sound of water chickens in the throat".

Zhu Danxi of the Yuan Dynasty "Cause and Pulse Treatment" first created the name of "asthma". He pointed out: "The cause of asthma, phlegm and drinking, forming a rut, lurking inside, occasionally committing the seven emotions, eating and drinking, or the wind and cold of the external season, binding the surface of the muscles, then the evidence of asthma is the evidence." ”

Later generations of doctors divided asthma and asthma into two, and Yu Tong of the Ming Dynasty pointed out in the "True Biography of Medicine": "Wheezing is to breathe, and wheezing is famous for sound." "It is believed that shortness of breath, opening the mouth and raising the shoulders is wheezing, and panting in and out, and there are sounds in the throat are wheezing, and wheezing must be combined with wheezing, and wheezing does not have to be combined with wheezing. The attack may be wheezing, or wheezing. In severe cases, it can cause sudden death.

"Asthma?" This name is right for the disease! Huang Zhong hurriedly clenched his fists and stood up: "Dare to ask Shaojun, there is a cure." ”

Liu Bei smiled and nodded: "Yes." ”

The moment she heard this word, Mrs. Huang couldn't help but burst into tears. Liu Bei's words are no better than this!

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

It can be induced whenever inhaled such as dust mites, pollen, fungi, animal dander, etc. Sneezing is caused by irritation of the nasal passages. Fortunately, he was strong and healthy. It also coincides with the height of summer, and the scorching sun makes it difficult for bacteria to breed. In the rainy and hazy season of spring and autumn, this disease is prone to occur.

Healing is important.

Liu Bei then called the sect and went to the third uncle's house to ask for animal bones.

Soon, several pieces of fine tiger bones were sent by Liu Wu.

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

"Heal." Liu Bei said with a smile.

"Oh......" Liu Wu nodded as if he didn't understand.

The best treatment for allergic asthma is to block out allergic inhalers. The principle is very simple, making a mask can solve the problem. However, for different inhalation sizes, the only way to isolate them all is activated carbon.

With the adsorption principle of activated carbon, it can filter inhalants such as dust mites, pollen, fungi, and animal dander into the air.

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

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

Finding Su Bo, Liu Bei presented the newly drawn design drawings to him.

"Young owner, what is this?"

"Half mask." Liu Bei made random gestures on his face with his hand: "Starting from the nose and wrapping it all the way to the chin, but the forehead and eyes should be exposed."

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

"The shell is carved in cypress wood and painted. The inner shell is sewn with beef tendon, and I make the lining. Liu Bei pointed to the circular groove in the middle of the mask and said, "How about making a cross knob buckle here to embed the 'Beast Bone Mineral Blood Medicine Cartridge'?" ”

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

Activated charcoal firing requires a high temperature of 1,000 degrees.

This is not a problem, the crow crosses the dragon kiln of Geng Yong's house, and the temperature is as high as 1,300 degrees.

There is no problem at all with firing activated carbon.

The tiger bones and mineral blood were sent to Geng Yong, and a handwritten letter detailing the firing method. A few days later, Geng Yong personally sent it.

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

Wait for Sub to carve the wooden mask. The craftsman also prepared the medicine cartridge with small holes on both sides.

The cartridge is made of bamboo tubes, and the two ends are filled with honeycomb-shaped holes, and the middle section can be unscrewed. Liu Bei used the activated charcoal fired from the tiger bones to sieve out the uniform particles, and then asked his mother to use a fine yarn bag with a similar inner diameter to the bamboo tube to sew it into a medicine bag. Make sure it won't leak, so carefully stuff it into the cartridge. Then align the reserved cross buckle on the cartridge with the reserved cross slot on the mask and tighten it firmly. The cartridge and mask are combined into one. The seams are sealed with beeswax and tucked in a soft gauze lining, a half-mask activated carbon gas mask, and you're done!

found Huang Xu to try it on, and asked Su Bo to make adjustments. A simple breathing mask, which is roughly finished.

Liu Bei asked Huang Xuzhong to walk the way he came, until he reached the entrance of the village, and there was no sneezing!

"Shaojun is above, please bow to Huang Zhong!" The eight-foot man bows his head.

Liu Bei's small body, how can he hold it. I can only accept this worship.

Helping Huang Zhong up, Liu Bei said again: "Although the beast bone mineral blood medicine package can suppress cough, it will be invalid for a long time. Check it out from time to time so you can replace it. As...... How about staying in Lousang for the time being and leaving again when the asthma is cured? ”

"So ......" the big man clasped his fists and saluted again: "Huang Zhong is grateful!" ”