Budesonide Nasal Spray is mainly used for the treatment of allergic rhinitis and other allergic rhinitis, and is generally not used in the treatment of allergic bronchitis. Budesonide is a glucocorticoid with highly effective local anti-inflammatory effect, mainly used for perennial allergic rhinitis and seasonal allergic rhinitis, vasomotor rhinitis, also used for nasal polypectomy after, not effective for allergic bronchitis. Adverse reactions such as local irritation, rhinorrhea, and mild hemorrhagic discharge from the nose may occur after use of the drug and are usually relieved by discontinuation of the drug. The drug should be used with caution if treating patients with concomitant fungal infections of the nose and herpes, athletes, pregnant women, and children under 6 years of age. The use of this drug is contraindicated in people with a history of hypersensitivity to budesonide or the ingredients in the prescription. The exact dosage should follow the doctor’s instructions. The presence of allergic bronchitis should be treated promptly and in accordance with medical advice.