After listening to Liu Xin's words, Lu Man's face sank like water. Follow? Dreams? .lā

Those few gentlemen can only remember for a long time after being taught a lesson, and they will definitely not dare to find He Cheng's bad luck easily in the future. Song Ming's love, she wrote it down.

There are also the eldest princess and the old concubine, why did they support their waists to enter the palace to complain and fight, and publicize with great fanfare that He Cheng was not only their relatives, but also covered by them, Lu Man was grateful.

There is also Xie Lao Guogong, he can completely leave it alone, but he still enters the palace to mix the water, and his love Lu Man also remembers.

The most disgusting thing about her is Jiang Zhanxun, there is a fly buzzing at home, and it is always unappetizing.

Lu Man praised Liu Xin for doing this well, and found the prince of Hejun in time, not only did he not blame him, but also rewarded him with ten taels of silver, and rewarded the subordinates who went with him that day with him two taels of silver.

Because of his anger, Lu Man didn't sleep well at night.

The next day, Lu Man got up on time, and after breakfast, he took some wild things and mountain goods he had acquired, as well as a basket of fat and tender wild vegetables, to Heming Hall to greet the eldest princess and the old concubine, and then thanked the eldest princess for her help. After asking for peace, she had to hurry back to refine the two suspected night yellow flowers, afraid that the effect of the medicine would be reduced after a long time.

Jiang Jiu and Song Mo still slept soundly, and they didn't call them.

Before going out, Liu Ya whispered to Lu Man that at the end of May, the eldest lady would come back.

The eldest lady was sent back to her parents' house in November last year, and it was time to come back for half a year. She was driven back to her parents' house because of herself, and she would definitely hate herself even more in her heart. But Lu Man is not afraid of her now, she has already split up, and the eldest princess is at the top, she has learned such a big lesson, at least she doesn't dare to blatantly oppose herself.

When he arrived at Heming Hall, Lu Man was blocked by the third lady at the door of the bedroom. It turned out that the eldest princess had a cold, fever, and headache, and was still lying in bed. The imperial doctor said that this disease was going to be too sick, and Lu Man was now pregnant with a child and didn't dare to let her in.

said that the eldest princess was sick in the early morning, and the cough frightened the grandmother on duty at night, and hurried to tell the master, and went to ask the imperial doctor. They all came to pay their respects, and several gentlemen didn't even go to the yamen. Listening to the voice, there are not only gentlemen in the house, but also the voices of the eldest lady, the second lady, and the eldest grandmother.

Standing at the door, he could also hear the occasional coughing and humming sound from the old lady, and Lu Man was extremely distressed. The old lady was usually in very good health, and she was used to enjoying the blessings, and when she fell ill, she felt uncomfortable.

The person who picked up the medicine came back, Lu Man took the prescription and looked at it, and the smell of "willow bark" in it made her eyes light up. Willow bark has the effects of analgesic, lightening and reducing heat, so willow bark is generally added to traditional Chinese medicine for the treatment of wind and cold.

Lu Man knew in more detail that willow bark contains a substance called salicylic acid, which can cure many diseases. Because an overdose of salicylic acid can cause poisoning, scientists in previous lives added a mixture of salicylic acid and acetic anhydride to concentrated sulfuric acid to synthesize the "miracle drug" aspirin.

Although the ancients did not know what salicylic acid was, they knew that willow bark could relieve pain and reduce fever.

In this era, there was no acetic anhydride, but the toxicity in salicylic acid could be mitigated by other means. Huang Kelai's medicine is to use the leaves to overcome the toxins in the flowers......

Lu Man comforted the eldest princess outside the door for a few words, and then turned back, she wanted to go back to medicine quickly. Those two flowers can't be delayed any longer, she also wants to get salicylic acid out, control the quantity, and not eat it for a long time, which will alleviate the pain of the eldest princess.

When the second master heard that Lu Man had stood at the door for half an hour and then returned to Donghui Courtyard, he was so angry that his old face turned red, and he wanted to scold people and went back.

Jiang Houye was also not happy, the elders sympathized with her and did not let her enter the bedroom because she was pregnant, but she was a doctor, so she could stay in the hall and help come up with ideas.

A smile crossed the eldest lady's face. She is much smarter now, and there are some things that she doesn't need to say herself, so naturally someone will teach her a lesson. Isn't the eldest princess rare, and the Lu family is so rare? Well, for the sake of the lump of meat in her stomach, she didn't even know what it looked like.

Lu Man walked to the door of the Hanging Flower Gate and met the old horse. He turned back from outside, because he was going to see the eldest princess and was stopped, so he went outside for a big turn.

As soon as he saw Lu Man, he lost his temper again, and shouted loudly, "Wei Wei's daughter-in-law is as bad as Wei Wei, and she won't take me when she goes out to play." He complained again, "Changting is sick, and they won't let me go in to see her......"

Lu Man didn't want the old man to make trouble here, so he coaxed him back to Donghui Courtyard together.

At this time, Jiang Jiu and Song Mo both got up, so they sent Song Mo and the old man to the West Cross Courtyard to play.

And Lu Man took the two flowers, and pulled a leaf that was suspected to be a night yellow flower, called Lu Aya, Xiaoxi, and Xiaozhong to the kitchen, and asked people to peel a basket of willow bark and bring it over.

There are two kitchens in the back room, one for the master and the other for the subordinates. Lu Man occupied the kitchen where the master made food, there were two stoves in the kitchen, one large and one small, she led Xiaoxi to use a small stove to refine Huang Kelai, and let Lu Aya lead Xiaozhong to use a large stove to refine salicylic acid.

She first washes the flowers and leaves, salts them for a quarter of an hour, mashes them, then boils them with water in a pot, puts the mashed juice into the pot and boils them, and concentrates them constantly......

At this time, the subordinates brought the willow bark, and Lu Man taught Lu Aya and Xiaozhong to wash the bark, then cut it into small pieces, soak it and heat it, boil it for two quarters of an hour, take out the filtered willow bark while it is hot, and then continue to heat and concentrate the solution......

During this period, He Cheng also came, and Lu Man asked him to stay and help.

Seeing that he wanted to stop talking, Lu Man said, "My sister already knows about it, I don't blame you, now let's make the medicine first." ”

Seeing the bruise on his face, Lu Man was very distressed. It's worrying that girls are good-looking, and boys are still worrying. Fortunately, this younger brother has good quality, otherwise he would be more worried......

The solution of the suspected nightshade was concentrated to the end, and it really filtered out a pale yellow powder, and a faint sweet fragrance, exactly the same as the record. Lu Man was about to cry with excitement, ninety-nine percent of that flower should be a night yellow flower.

Seeing Lu Man so excited, He Cheng asked happily, "This is the Huang Kelai recorded in the book?" ”

Lu Man said with a smile, "Nine percent of the time is sure that there is one last process." ”

Then, white crystals also appeared in the cauldron where the salicylic acid was extracted. The heating was stopped again, and people went to the ice cellar to get some ice cubes to cool the solution, and more crystals could be obtained.

This crystal is salicylic acid, and Lu Man asked He Cheng to put these salicylic acid into a small porcelain bottle. The name "salicylic acid" was so modern that she renamed it salicylic acid.

Lu Man used honey and other materials to make the powder of the night yellow flower into a pill the size of a soybean grain, and made a total of twenty pills. If that flower is a night yellow flower, this pill is Huang Ke. With this kind of medicine, she was reluctant to test the medicine for the little white rabbit. If it weren't for the baby in her belly, she would have wanted to try it herself.

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