Seasonal allergic rhinitis, also known as pollen rhinitis, is prone to occur when the seasons change and is more common in young people. The disease begins every pollen spreading season. When the disease occurs, the eyes are itchy, and the conjunctiva is severely congested and edematous, which leads to misdiagnosis as common conjunctivitis. Seasonal allergic rhinitis is not a serious disease, but it is a chronic disease with a high incidence rate. There are at least tens of millions of patients with this disease in my country. Once the disease breaks out, it will recur year after year, seriously affecting the quality of life and daily work. The daily treatment drugs also increase the medical burden on families and the government. What is most noteworthy is that nearly half of the patients with summer and autumn hay fever may develop into seasonal allergic asthma within 9 years of the first onset, and the process takes 5-10 years.