(1) 1 under the age of, because the child is just born and has antibodies brought by his mother, he seldom gets sick. Children of this age are mainly rubbing their eyes and can't sleep well at night. Children with severe allergies often have stuffy noses and sneezes. Another typical performance is that children suddenly don't eat milk, or the amount of milk is obviously reduced. If the child has these symptoms and has had asthmatic pneumonia or bronchiolitis at 9~ 1 1 month, there is a great chance of developing asthma in the future.

(2)3~5 years old, this age is the high incidence of allergies. Because children often go out and are exposed to more and more allergens, allergic symptoms are obvious during this period, especially after children go to kindergarten, they are more likely to cross infection. The main symptoms during this period are: repeated fever or persistent high fever, often accompanied by headache, dizziness and bad breath, which is caused by nasal vestibulitis or acute sinusitis.

In addition, febrile convulsion and myocardial injury mainly occur at this stage, and children with febrile convulsion mostly suffer from chronic sinusitis. The manifestations of myocardial injury are that you often sweat when sleeping at night, don't like to walk, and don't gain weight or change much within half a year.

(3)5~8 years old, the child is thin and active, love sweating, talkative and intelligent, but with a big temper and carelessness. Children with chronic sinusitis often have high fever and suppuration of tonsils. I summed it up in two sentences: first, there is no long bone, stand up straight and sit up straight; Second, without long ears, others talk like they didn't hear them, dragging their feet.

(5) 12~ 16 years old, children are sloppy or their academic performance is declining, or their grades are high and low. Teachers will find that children are always sleepy and distracted in class. Physical education class's running performance is not good. Other diseases will also have the above symptoms, not necessarily allergic symptoms. Please pay attention to this.