Zheng Changyin had just come up with a good practice question for the students in the class and was about to leave the classroom to find a manufacturer. was stopped by a girl in the class.

"Mr. Zheng, wait a minute." The girl hurriedly stepped forward and stopped Zheng Changyin.

Zheng Changyin turned around and glanced at the girl. Just glanced at it, and was stunned. What's wrong with the girl's face? Why is it covered with red rashes?

Maybe it's because it's so itchy that the girl keeps reaching out to scratch it.

"You can't scratch it, if you scratch it, it will be infected." Zheng Changyin immediately grabbed the girl's hand.

As soon as she heard that it would be infected, the girl quickly retracted her hand. But it itched uncomfortably, and his brow was furrowed.

"Why is your face like this? What did you eat in the morning? What have you used? Zheng Changyin asked. The first thing that came to her mind was that the girl was asking her for help, and of course she wanted to know what the girl had touched and whether she had been exposed to allergens.

"I just used your skincare products." The girl blurted out.

Skincare products "fair-skinned princess"? Zheng Changyin was stunned again. However, then he looked at the girl suspiciously. The skincare products she formulates are all natural, very gentle, and suitable for people of all skin types, how can you have allergies?

Zheng Changyin was about to open his mouth to ask the girl if she had used anything else. But before the words could be asked, several more girls in the class came around.

"Me too, I applied 'Fair-skinned Princess' this morning, and now my face is itchy and uncomfortable."

"My face is also covered with a rash."

"I also used your skincare products, and now I have allergies."

"Me too. What to do? Will my face be disfigured? ”

If only one girl said that she was allergic to the "fair-skinned princess", Zheng Changyin would suspect that she was panicking. However, now one-third of the girls in the class say so, and Zheng Changyin was blindsided for a while.

How so? There's no way there's anything wrong with the skincare products she prescribes. Zheng Changyin wondered.

At this time, Yang Yan, Du Xiaoyu and Zhou Yitong stepped forward and also surrounded them.

"Who asked us for skincare products every day? Now I don't know what I used wrongly, what I ate wrong, I got allergies, and I want to blame Changyin's body? Zhou Yitong was the first to open his mouth to reprimand.

"That's it, what are you yelling at now?" Yang Yan also chimed in.

was yelled at by Zhou Yitong and Yang Yan, and the girls didn't dare to make a sound, and they all lowered their heads.

Zheng Changyin was silent. Her gaze moved over the girls' faces and hands. Some girls have face allergies, some girls have allergies to the back of their hands, and some girls have allergies to the back of their faces and hands at the same time.

Allergies are all the same, they are all covered with red rashes. This made Zheng Changyin feel strange, how could the girls' symptoms be exactly the same?

At this time, several girls from the next class also came, shouting at Zheng Changyin.

"Student Zheng, I used this skin care product, and my face is allergic!" A girl directly threw a bottle of "fair-skinned princess" on the table.

"That's it! What do you see our faces look like? ”

Zheng Changyin glanced at them suspiciously, and sure enough, they also had red rashes on their faces, exactly the same symptoms as the girls in the same class.

It's strange, why did the girls who used the "fair-skinned princess" have allergies overnight?

"Don't spray people with blood, the skin care products prepared by Sister Changyin have nothing to do with it. If you don't believe me, I'll show you it now. After speaking, Du Xiaoyu immediately picked up the bottle of "Fair-skinned Princess" on the table, opened the cap, and wanted to apply it to his face.

However, Du Xiaoyu's hand was not touched by the medicine mud before it was snatched away by Zheng Changyin.

"Sister Changyin......" Du Xiaoyu looked at Zheng Changyin in confusion. She wants to prove Sister Changyin's innocence in person on the spot, why stop her?

Zheng Changyin didn't say a word, reached out and dipped a handful of medicinal mud and put it on the back of his hand.

As soon as the clay is applied, it becomes transparent and clings to the skin. Everyone's eyes were focused on the back of Zheng Changyin's hand.

Zheng Changyin stretched out his hand and put it close to his nose, sniffed, and did not retract his hand for a long time. Because, she smelled another pollen ingredient. This flower is the source of allergies in girls. However, Zheng Changyin clearly remembers that there is no such pollen in her skin care products!

Zheng Changyin frowned, put the "fair-skinned princess" in his hand on the table, and then snatched the "fair-skinned princess" in the hands of another girl. Open the bottle and put it in front of your nose to sniff.

Sure enough, there are pollen that can make people allergic! Where exactly does this pollen come from?

"Her hands are allergic too!" Suddenly, in the crowd, someone screamed. Everyone's eyes looked at the back of Zheng Changyin's hand again.

I saw that the back of Zheng Changyin's hand was red, and there were a few red rashes.

"Sister Changyin......" Du Xiaoyu, who was closest to Zheng Changyin, was taken aback and looked at Zheng Changyin in a panic.

Yang Yan and Zhou Yitong also panicked. How so? Is there really something wrong with skincare products?

"I'll just say, there's something wrong with her skincare products!"

"My heart is so ruthless, I even mixed skin care products with allergies to us!"

"Let's tell the teacher, tell the principal to go."

The girls are heckling again.

This time, Yang Yan, Du Xiaoyu, and Zhou Yitong didn't dare to say anything anymore, so they only looked at Zheng Changyin at a loss.

Girls, you say a word, I shout a word. It was so loud that some curious boys also gathered around. Zheng Changyin was surrounded by everyone in the middle and couldn't move.

The scene became very chaotic, and the more the girls talked, the more angry they became, and they were about to wave their fists at Zheng Changyin.

Until, Zheng Changyin couldn't bear it anymore and yelled: "Enough!" ”

Zheng Changyin's voice drowned out the shouts of all the girls. In an instant, the crowd fell silent.

"If you still want an antidote, don't argue." When everyone quieted down, Zheng Changyin added.

There's an antidote. The girls were dumbfounded, angry and scared, and no one dared to say anything more.

Yang Yan, Zhou Yitong and Du Xiaoyu frowned. What do you mean by this? Isn't this tantamount to acquiescing that the "fair-skinned princess" is toxic?

Zheng Changyin ignored everyone's strange gazes, and took out another bottle of medicinal mud from his pocket. What is in this bottle is pure medicine mud, which is medicine and has no skin care effect.

I saw that Zheng Changyin opened the cap of the bottle and dipped it in his hand and applied it to the back of his hand.

For a while, everyone's eyes focused on the back of Zheng Changyin's hand.

One minute, two minutes, and three minutes passed, and I saw that the red rash on the back of Zheng Changyin's hand was slowly receding. After about five minutes, there was no red shadow on the back of the hand, and it was white and smooth again.

"Quick, give us the antidote!" The girls immediately believed that this was the antidote. Another girl reached out and was about to grab it.