Whether to use Budesonide Nasal Spray in late pregnancy is recommended to be decided after weighing the pros and cons under the guidance of a professional physician, and not blindly self-medication. Budesonide Nasal Spray is a commonly used drug for the treatment of allergic rhinitis, belonging to the class of glucocorticoid drugs, the current clinical experience from pregnant women is limited, until more experience is gained, pregnant women should not blindly self-administer this product. The results of a large number of prospective epidemiologic studies and worldwide post-marketing experience have not identified any adverse effects on the embryo or neonate associated with the use of inhaled budesonide during pregnancy. As with other medications, the use of budesonide during pregnancy should be weighed against its benefits to the mother and its possible risks to the embryo. Patients with allergic rhinitis during pregnancy should try to avoid contact with allergens during the day, and patients should consult a medical professional to find out if the medication can be used, and use it scientifically in order to improve the symptoms of rhinitis and to reduce the effects on the fetus.