People often find in daily life: some children often “catch a cold”, sneeze after sneeze, a lot of snot, but also often rub their nose, rub their eyes, make strange faces, and sleep restlessly at night, a night can sleep from one end of the bed to the other, as if the bed he sleeps alone is still too small. Parents sought medical help for their children’s recurring colds and repeatedly asked: How could the children have recurring colds? When the doctor told them that the child probably had allergic rhinitis? Parents are very confused and always think that their children are still very young, how can they get allergic rhinitis? Therefore, the presence of allergic rhinitis in children has become a matter of great concern. In fact, allergic rhinitis, also known as allergic rhinitis, is a very common nasal disease, the incidence of which accounts for about 30% to 40% of the population; it can occur at any age between 1 to 2 years old and 80 to 90 years old, more often seen in young and middle-aged people, both sexes. Children are growing and developing, and as their immune function continues to improve and their range of activities expands with age, their exposure to allergic factors in the environment increases, and the body’s response to these allergic factors continues to strengthen with each passing day. According to reports, the prevalence of allergic rhinitis in children has increased in recent years, with 20% of infants under 3 years of age and 40% of children under 6 years of age suffering from allergic rhinitis. In addition, because the immune function of young children is not yet well developed, they are prone to catching colds and allergic rhinitis; moreover, because of their anatomical and physiological characteristics, children of this age are prone to allergic rhinitis combined with conjunctivitis and bronchial asthma, and some of them also develop allergic dermatitis. Therefore, the allergy triad consisting of allergic rhinoconjunctivitis, allergic asthma and allergic dermatitis is much more frequent in infants and children than in children or adults. Some children with allergic rhinitis also have a combination of chronic sinusitis and otitis media. Therefore, it is now recognized that allergic rhinitis is a chronic disease with early onset, difficult to treat, and easily affects a large number of people.