At school, we also learned simple allergy knowledge in biology class, which is about allergic reaction of human immune system.

Examples of allergies are not uncommon. On TV, we can also see some people sneezing at the smell of flowers, or shaking hands when they see dogs.

Although I have allergic rhinitis myself (which happened for the first time in college) and occasional skin allergy, I have no other allergic experience, and there is no taboo to eat anything. I have never seen such an example around me.

I just didn't realize that my son Xiao Jiu was allergic to eggs, milk and tomatoes.

Things should start from his childhood (although he is only 4 years old now):

1.？ Find an allergy

As early as five or six months in Xiao Jiu, we found that his mouth sometimes turned red after eating, and he vomited after drinking milk powder and rice flour several times. Because he vomited milk badly when he was a child, I didn't think of allergies at first. I just thought that complementary food was just added, and the child's stomach could not accept other foods, so I stopped giving him these reactive things.

For this reason, we ate breast milk for almost eight or nine months before slowly adding some complementary food to him. Continue to add from egg yolk. Then I found that he would still have a red mouth for no reason, sometimes on his face and neck. And it's red every time, which may make him itchy or uncomfortable, so he always rubs it for us. We didn't feel right until now. Looking back at the situation before these rashes appeared, we found that everyone seemed to have eaten eggs. In view of this, we tried it pertinently (only one kind of food was given this day to see if there was any reaction), and it was really a reaction to eggs.

Although it will disappear about half an hour after each rash, it seems to be no big deal. But when I realized that it might be allergies and understood the principle of allergies, I couldn't calm down. It's definitely not a good thing for Xiao Jiu to keep doing this. Think again, if you are really allergic, it's just eggs now. What are the allergies besides eggs? What should I do after confirming my allergy?

So, when I was ten months old, I took him to the hospital for examination and did an allergen test at the doctor's suggestion.

2.？ Diagnose allergy

The inspection report shows that Xiao Jiu is allergic, and the allergens are egg white and tomatoes. The egg white index is higher and the tomato is lighter. But the doctor said a lot of vague words, saying that even if the child is still young, it is of little significance to detect allergens, because the child's state is unstable, and allergies now do not mean allergies in the future. I just suggest not to touch these two things again in the near future, and we can try them slowly in the future.

Then I looked up some information on the Internet. There are indeed many sayings that for Xiaobaobao, if he is allergic, he should stop contact for at least half a year and then start a little test.

Fortunately, when I was very young, I could eat very little, and it was not a great thing not to eat eggs and tomatoes. Of course, it is inevitable to eat by mistake at first, such as cookies given by others who don't know the formula. Occasionally, they still react. Even once, they accidentally gave him something like a cake, which made him have a rash all over his face and even on his body, making us afraid to send him to the emergency department for anti-allergic drugs. But the management became more and more strict, and it was not until more than half a year later that he began to eat eggs a little.

At this time, Xiao Jiu didn't turn red, so we completely let go of his diet.

3.？ See a doctor again.

After fully liberalizing the diet, until I was 4 years old this year, there were probably one or two cases of redness on the outer ring of my mouth. We don't care about this. Until this year, he had a bad cough and went to the hospital for examination and found that he had mycoplasma pneumonia.

After a series of hospitalization and medication, his cough is still intermittent, and sometimes he even starts to gasp after coughing a few times at night, although it will disappear after sleeping.

This has been a month since I was hospitalized. In order to avoid getting worse after school, I took him to see a Chinese medicine doctor introduced by a friend. It's just that Chinese medicine practitioners have taken two pairs of medicines, and there hasn't been much change in these two weeks. They can only say that they have made a little progress.

Finally, on the recommendation of my mother's friend, I took him across the city to see a western pediatrician. The doctor confirmed that our mycoplasma pneumonia was cured according to the course of treatment, but the cause of persistent cough can be preliminarily judged as allergic cough, and the diagnosis can be basically confirmed after routine blood examination.

Moreover, the doctor's explanation solved Xiao Jiu's long-term nasal congestion problem. Because allergies can not only cause rashes, but also cause many other reactions such as nasal edema. The consequences of long-term nasal congestion are not optimistic. Although it is not obvious during the day, it will make children sleep, snore and breathe through their mouths at night, resulting in poor sleep quality, lack of sleep and long-term hypoxia, which will affect growth and development.

The harm of allergies seems to be only erythema, or just nasal congestion. It is actually the rejection of allergens by the immune system. If you are exposed to allergens all the time, it will always destroy the immune system. For children, what is nutritious is just like poison. Therefore, avoiding contact with allergens is the most fundamental measure.

Because the allergic results tested three years ago were not sure whether it was effective now, it seemed that it could be tested more comprehensively this time, so at the doctor's suggestion, we checked the allergens again.

The doctor prescribed us anti-allergic drugs that day, and when I came back to eat the next day, I really didn't cough at all. Although I cough several times every few days, the effect is definitely better than all the medicines I have taken before.

4.？ Things have come to an end

Because of the hospital's mistake, it took two weeks to get the allergen report (originally only one week). According to the report, Xiao Jiu is allergic to egg white and milk, but also to dust mites and mold. Egg white is allergic to grade 2, and the doctor told him not to touch eggs again until he developed well (there were no tomatoes in this test, but the doctor said he could not eat them for safety). As for the milk is 1 grade, it must be isolated for half a year and eaten after half a year.

Dust mites and molds are inhalation. Although dust mites are allergic to grade 4, inhalation is better than food and does little harm to the body. As for how to isolate, there is no good way except to apply pollen blocking agent in the nostrils. Of course, we should also avoid going to places that are too dirty. The same is true of mold, so his cough will be more in rainy days, and it is also because there are many molds in rainy days, which is easy to stimulate his cough.

Although I was psychologically prepared for Xiao Jiu's egg white allergy, I didn't expect the doctor to say not to touch it before development.

What happens when you can't touch an egg? In other words, he can't eat any food containing eggs, including cakes, bread, biscuits, salad dressing and so on. With milk, tomatoes, ketchup, hamburgers and pizza ... too much. Let's say kindergarten meals. You can have one of these three foods in any combination. Poor Xiao Jiu especially likes to eat these things. And not a week, not a month, but more than ten years!

Fortunately, milk and tomatoes only need to endure for half a year.

However, Xiao Jiu seems to accept this reality more easily than expected. Just like a child I met in an early education class, he watched us eat greedily, but he not only knew not to eat eggs, but also restrained himself.

Compared with adults, children seem to accept this seemingly cruel thing more easily. Maybe it's because their world is too simple to think of many things. They just need to eat or not eat, and we are more worried about how to prevent them from not eating these things in the future.

Last time I was in the hospital, I met a child who was similar to him, a little older than Xiao Jiu. At first, his cough and asthma were worse than those in Xiao Jiu, but his parents said there was no way to prevent him from eating allergic things. Yes, he is allergic to rice.

However, for the sake of children's health, we must try to avoid it. When we go to school now, we just tell our teacher that we can't give him those three things. There are eggs or tomatoes on the menu. If you don't eat them, you won't be full. I have to prepare another meal for him and bring it up in an insulated bowl. Soymilk or other snacks should also be prepared for him in the morning milk biscuits.

If such hard work can make him eat eggs when he grows up, it will be worth it. If you can't eat eggs for a lifetime, how miserable it will be. With this in mind, we must strictly implement it and persist in development.

Finally, post a detailed scientific explanation to give mothers who can see the end a more scientific explanation:

Under normal circumstances, foreign substances enter the human body, and most of them face two fates. If recognized as useful or harmless substances by the human body, these substances will live in harmony with the human body and eventually be absorbed, utilized or naturally discharged. If these substances are identified as harmful substances, the body's immune system will react immediately to drive them away or destroy them, which is the protective effect of immune response. Immune response is one of the important functions of human defense system, but if this reaction is beyond the normal range, that is, when the immune system attacks harmless substances, this situation is called allergic reaction. Allergy is a disease, because unprovoked attacks can also damage normal body tissues, and even the immune system sometimes attacks and destroys the body's own tissues, which is very unfavorable to human health.

In a word, allergic reaction is not psychopathy, but "abnormal" function of human immune system. Clinically, according to the classification principle put forward by Coombs and Gell in 1963, allergic reaction can be divided into type I (hairstyle) and type II (cytotoxic type). Type ⅲ (immune complex type) and type ⅳ (delayed type). Allergy is the main representative of type I allergic reaction, which can be roughly divided into allergic reaction and allergic disease in clinic. The former is a systemic syndrome in which the body reacts abnormally to allergens. The latter is allergies involving specific organs and tissues, leading to certain diseases. Common allergic diseases include allergic asthma, allergic rhinitis, hay fever and some dermatitis.