Budesonide Spray is generally referred to as Budesonide Nasal Spray, which works mainly to treat allergic rhinitis and prevent regrowth of nasal polyps. Budesonide Nasal Spray mainly treats seasonal allergic rhinitis and vasomotor rhinitis. For post-nasal polypectomy, application of Budesonide Nasal Spray can prevent and treat regrowth of polyps after nasal polypectomy. Adverse reactions such as local irritation, urticaria, rash, pruritus, allergic symptoms such as angioneurotic edema, rhinorrhea, nasal septal ulceration and perforation may occur after application. It is contraindicated in individuals with a history of hypersensitivity to budesonide and any of the ingredients in the prescription. Application of Budesonide Nasal Spray needs to be under the supervision of a doctor, and adverse reactions should be sought promptly.