Allergic rhinitis and asthma are both allergic diseases that seriously affect the quality of human life, and their prevalence is increasing in a complementary manner. Epidemiological data show that the prevalence of asthma in the general population is 2%-5%, while the prevalence of asthma in patients with allergic rhinitis is as high as 20%-38%. In terms of treatment, allergic rhinitis and asthma have similarities, such as corticosteroids and anti-leukotriene drugs are equally effective in the treatment of allergic rhinitis and asthma, and allergen avoidance and immunotherapy are also suitable for patients with allergic rhinitis and allergic asthma. In addition, treatment of allergic rhinitis can reduce the symptoms of asthma and decrease the incidence of asthma. Allergic rhinitis and asthma are very similar in terms of immunological pathogenesis. In recent years, a new medical diagnosis of allergic rhinitis asthma syndrome has been proposed to combine the two in treatment. Is allergic rhinitis related to asthma disease? From a clinical point of view, the incidence of rhinitis and allergic rhinitis has increased significantly in recent years, especially in spring, when the temperature difference between day and night, pollen dispersal and sandy wind make it a high season for rhinitis and allergic rhinitis. Allergic rhinitis is one of the more common types of rhinitis, which is an inflammation of the nasal mucosa caused by allergies, mainly manifested as nasal itching, sneezing, runny nose and other symptoms, if not properly treated, a significant number of patients will eventually develop asthma, and the possibility of developing nasal polyps, sinusitis and secretory otitis media will also be greatly increased. There is a medical opinion that allergic rhinitis and asthma are “the same airway, the same type of disease”, often existing together, like closely related relatives. This is because the nasal mucosa is connected to the airway mucosa, and if the inflammation of the nasal mucosa is not controlled in time, it can easily develop into the airway, causing damage to the airway mucosa, resulting in airway inflammation and causing asthma symptoms such as coughing and shortness of breath. Clinical practice has found that some patients with allergic rhinitis are accompanied by asthma attacks, while most asthma patients have a history of allergic rhinitis. Doctors say that allergic rhinitis and asthma should be treated simultaneously with a two-pronged approach.