(Disclaimer: This article is for scientific purposes only, in order to protect the privacy of patients, the relevant information in the following content has been processed) Abstract: Two-year-old babies are prone to sneezing, nasal congestion, runny nose, and itchy nose every time there is a change of seasons, especially when they are suddenly exposed to cold air, or run into places where there is some dust gathering or abundant flowers, which is a characteristic of pediatric allergic rhinitis. A combination of allergen avoidance, oral anti-allergy medication and nasal spray medication usually achieves better results. 【Basic information】 Male, 2 years old 【Type of disease】 Pediatric allergic rhinitis 【Hospital visit】 Shanghai Sixth People’s Hospital 【Time of visit】 January 2022 【Treatment plan】 Oral anti-allergy medicine (loratadine or cetirizine hydrochloride) + saline nasal wash + mometasone furoate nasal spray 【Treatment cycle】 Home observation and treatment for one week, one week outpatient follow-up 【Treatment effect】 Nasal congestion, runny nose, nasal itching The child’s mother came to the clinic on a winter morning with the child in her arms. The child’s mother was a little anxious. In the last 2 years, the child had frequent respiratory symptoms, especially sneezing, runny nose, and itchy nose, usually when the seasons changed or when the temperature suddenly dropped, and also sneezing and itchy nose when she took the child to the park outside. The symptoms were not serious and she did not have fever, but she had been sick for a long time. Parents in the home cleaning sweeping, children will be a sneezing, the child’s mother is very worried, afraid of the child’s immunity is weak, has used a lot of methods, but no improvement. The child was given a physical examination, and there was no obvious abnormality on cardiopulmonary auscultation, nor was there any redness or swelling in the throat. After asking some additional questions, the child’s mother had allergic rhinitis, the father had chronic urticaria, and the child often had eczema as well as diarrhea during infancy. The child was given routine blood tests, allergen tests, and a look at the child’s nasal mucosa, which was found to be congested and swollen, so the diagnosis of pediatric allergic rhinitis was considered. Immediately after the routine blood test, the possibility of acute respiratory tract infection was ruled out, and then combined with the allergen test report and nasal mucosal exploration, the diagnosis of pediatric allergic rhinitis was made. For this type of child, the focus of treatment is firstly to avoid allergens and minimize his exposure to allergy-prone substances, and at the same time take a combination of oral anti-allergy drugs (loratadine or cetirizine hydrochloride) + saline nasal wash + mometasone furoate nasal spray to improve the symptoms. Avoid eggs, milk or similar products in the diet, and if you want to try to eat them, pay close attention to whether there are symptoms such as diarrhea and stomach pain after eating them. Third, the therapeutic effect of the child’s medication a week later follow-up, the child’s mother obviously emotional relief, she said that the child is now sneezing, nasal congestion symptoms have obviously improved, even if the previous often in the morning or at night nasal congestion symptoms have been relieved. She also takes her child outdoors when the weather is good, and after a certain amount of activity, there is no obvious sneezing, shortness of breath, or shortness of breath. The child’s spirit and appetite increased, and he was able to breathe through his nose at night, and the quality of his sleep improved a lot. I am happy for the child and the parents that the child got the desired therapeutic effect after the treatment. In addition, it is recommended to increase physical activity, exercise the respiratory function, and strengthen the physical fitness of the child to minimize the occurrence of allergic reactions in the future when the child improves in all aspects. However, it is emphasized that in allergy-prone seasons, precautions should be taken to avoid contact with allergy-prone substances to minimize the triggering of the condition. Especially after entering kindergarten, we should take extra precautions because children with pediatric allergic rhinitis have weaker nasal mucous membrane barrier function, so if there are some respiratory bacterial or viral infections in other people in a group living environment, it is very easy to be transmitted to children with pediatric allergic rhinitis, so we have to avoid respiratory tract infections. Fifth, personal perception 1, the child’s respiratory symptoms of sneezing, runny nose are very common, first encountered in this case do not need to be too nervous, we should take him to the hospital in time to analyze the cause of the disease. 2, respiratory tract infections and pediatric allergic rhinitis can cause sneezing, nasal congestion, itchy nose symptoms, so it is not recommended to blindly use drugs without objective evidence. 3, usually should be appropriate to the child physical exercise, exercise respiratory function, enhance physical fitness, improve disease resistance, in order to reduce the occurrence of various diseases. 4, pediatric allergic rhinitis is a very common disease, usually by strengthening the popularization of science, improve the understanding of the parents of related diseases, to help children to do a better job of prevention.