Budesonide Nasal Spray is used by spraying the nose with the hands crossed, the left hand spraying the right nostril and the right hand spraying the left nostril, avoiding spraying directly into the nasal septum. This drug has different dosages for different conditions. Patients are advised to follow the dosage instructions or medical advice according to their own conditions. Budesonide Nasal Spray is mainly used for the treatment of seasonal and perennial allergic rhinitis, perennial non-allergic rhinitis, prevention of regrowth of nasal polyps after removal of nasal polyps, and symptomatic treatment of nasal polyps. For the treatment or prevention of nasal polyps, 256 μg per day, one spray in the morning or two sprays in the morning and evening. After obtaining the desired efficacy, reduce the dose to the smallest dose required to control symptoms as a maintenance dose. For allergic rhinitis in adults 18 years of age and older, a dose of 32 μg/spray may be used without prescription for up to 3 months. Adverse reactions include: common local irritation, rhinorrhea, and mildly hemorrhagic nasal discharge; rare angioedema, urticaria, dermatitis, rash, and pruritus; and rare septal perforation, nasal mucosal ulceration, and rapid-onset allergic reactions. In addition, budesonide nasal spray is prohibited for those who are allergic to the components of budesonide nasal spray, pregnant women should not be used, and the use of children under 6 years of age is not clear. If you need to use Budesonide Nasal Spray, it is recommended to consult a professional doctor and follow the doctor’s instructions to regulate the use of medication.