Spring passes, summer comes.

Although Lianhai City is located in the south, it has four distinct seasons, the spring is windy and dry, the summer is hot and rainy, the temperature is cool in autumn, and the rain and snow are uniform in winter.

This year's Lianhai City has entered the May of the solar calendar, but it is not as characteristic as the season at this time in the past.

This year's weather after May Day ranged from the dryness of spring to the heat of summer.

Lianhai City has not rained for more than half a month, and the weather is unusually irritable.

Crops in the fields around the suburbs are wilted by the sun.

The leaves of the trees in the green belt on both sides of the city road are also starting to wrinkle and curl due to the drought, and gusts of wind blow through it, rolling up the dust on the road.

Cicadas chirp in the trees, and the road is full of dust.

The sprinkler of the greening team of the Parks and Forestry Bureau kept watering the plants and trees in the green belt and spraying the road with wet, but it still could not alleviate the drought.

After the May Day holiday, people have returned to work one after another, and even major primary and secondary schools in Haishi have also opened one after another.

On the playground of Binhai Road Elementary School, which is separated from the sea by only one coastal road, elementary school students in grades 3 and 4 of grades 3 are taking physical education classes.

At about 10 o'clock in the morning, the sun's rays were already very strong, and the two physical education teachers gathered the students of the two classes under the big banyan tree in the playground.

The playground ground is paved with a plastic runway, a large area of green grass planted in the center of the playground, and there are 4 small-leaved banyan trees near the direction of the teaching building, each of which has a huge canopy, under the canopy is the aerial roots suspended in mid-air, densely packed like a curtain.

The canopy of the 4 small-leaved banyan trees is connected together, standing under the tree and looking up, covering the sky and the sun.

At this time, the shade of the trees is the only cool place on the playground.

Physical education for elementary school students is conducted in the shade of a tree.

The pre-class warm-up exercise is followed by the formal teaching content.

The PE class was a basketball pass, in which the elementary school students were divided into groups and slapped and passed the ball in a straight line in the shade of a tree.

Ten minutes later, some elementary school students were tired and panting and sweating.

Two young physical education teachers sighed on the sidelines.

"Now the physique of primary school students should be strengthened, and they began to shout tired after only ten minutes of practice."

"Nowadays, children are treasures in the palms of their parents, especially some parents are afraid that their children will be tired, so they do not work for their children, nor do they give their children physical exercise, which is very bad. But it's hot today, and I don't feel well, so why don't you let the students take a break first? ”

"It's not halftime yet, practice a little longer."

Two PE teachers stood at the side of the team to supervise the students' dribbling movements, and reminded them to correct them from time to time.

Suddenly, there were students in the ranks screaming.

"Ahh Hurt! ”

The eyes of the students and teachers were drawn to the group, and a little boy in the team clutched his arm and shouted in pain.

The two physical education teachers chuckled in their hearts, aren't they injured?

It is a big deal to have a student injured in physical education class, and no matter who makes a mistake, the teacher will be punished.

The two physical education teachers hurriedly rushed to the side of the little boy who was crying out in pain, one on each side, and asked urgently, "Where does it hurt?" What's the pain? ”

"My arm hurts, my neck hurts, it hurts and it ...... itchy," the little boy said as he began to cry.

One of the PE teachers moved the boy's arm, and the movement was not restricted, so it should not be a bone injury.

Looking closely at the little boy's arms and neck, I found that there were scratches on the skin and many red spots.

The little boy couldn't help but scratch at the red dotted skin while crying.

The skin becomes more and more red as you scratch it, and the red spots at the beginning quickly appear blisters, and the blisters get bigger and bigger, and you can see that there is a tendency to be scratched.

"It looks like an allergy, and some students used to be allergic to pollen, with red spots and blisters all over their bodies."

Another physical education teacher grabbed the little boy's hand, "Don't scratch it, the skin will be broken if you scratch it again, bear with it first, I'll take you to the infirmary." ”

The PE teacher picked up the boy and ran wildly to the infirmary.

Before they could go far, someone shouted again among the schoolchildren in the shade of the tree.

And this time there are more than one or two people.

"My arm hurts too."

"My hands hurt."

"My face hurts and itchy."

"My eyes hurt."

Some of the schoolchildren scratched their arms, some scratched their hands, some covered their eyes, and some covered their faces.

The physical education teacher who stayed behind was even more panicked, could it be that the disease just now was still contagious?

The young PE teacher was also uncomfortable by the students' commotion.

Arms, face, neck, chest, back...... I feel itchy in many parts of my body.

Now that the situation is that classes cannot be attended, the physical education teacher ordered the students, "Students line up with me, and everyone will go to the school infirmary together." ”

——

Binhai Road Elementary School, School Infirmary.

The old school doctor took reading glasses and carefully examined the little boy who was sent in.

The boy had reddish spots left by scratching on both arms and neck, and some of the spots already had small blisters in the center, forming pimples.

The little boy sat on the hospital bed in the school doctor's office, scratching his back with his hands from time to time.

The old school doctor lifted the collar of the little boy and found red marks on his back.

"It looks like a wheal rash." The old school doctor helped his reading glasses and muttered to himself.

"What is a wheal rash?" The PE teacher did not understand this medical term.

"Wheal rash is a traditional Chinese medicine term, which is commonly referred to as urticaria, which means allergies."

"Allergies?" The PE teacher bowed his head and asked the little boy, "Did you eat anything you were allergic to?" Are you allergic to pollen? Has this been the case before? ”

The little boy cried and shook his head, "It's uncomfortable...... I'm going home......"

The physical education teacher endured her temper and patiently comforted, "Okay, I'll notify your parents immediately, let the school doctor prescribe some medicine first, and if it doesn't work, we'll go to the hospital." ”

The old school doctor glanced at the physical education teacher through the upper edge of the frame of his reading glasses, and said slowly, "I will prescribe some chlorpheniramine to this student, take half a tablet internally each time, three times a day, and then prescribe some external ointment to relieve itching." It is recommended that you go home to rest, take the medicine first, apply it, continue to use it if the symptoms are relieved, and go to the hospital in time if the symptoms are not relieved or continue to worsen. ”

The old school doctor took out the medicine and first gave the little boy half a pill of chlorpheniramine orally with water, and then applied an external ointment to the red skin of his arms, back and neck.

"How does it feel?" The old school doctor asked the little boy while applying medicine.

"It still hurts, but it's a little better than before."

"That's what it does."

The physical education teacher stood aside, watching the old school doctor apply medicine to the little boy, and asked, "Doctor Zhao, what's wrong with him?" Allergies to what? How could there be such a sudden reaction? ”

The old school doctor lowered his head and replied while applying medicine, "Allergies are very mysterious, there are too many allergens, eating, using, skin contact, breathing into the body, and even the cold and heat of the air will cause people to have allergic reactions." ”