Mometasone Furoate Nasal Spray is used for the treatment and prevention of rhinitis, either in the morning or at night, and should be used at a set time each day to maintain the therapeutic effect of the medication. Mometasone Furoate Nasal Spray is a glucocorticoid nasal spray used primarily for the treatment of seasonal or perennial rhinitis and also for the prevention of allergic rhinitis; as this product is used once a day, it can be used at a fixed time of the day, either in the morning or in the evening to maintain the therapeutic effect of the drug. Common adverse reactions to this product are headache, burning irritation of the nasal passages, and nosebleeds. Contraindications are prohibited for those who are allergic to the ingredients; note that the nasal spray is dried with a handkerchief and capped promptly after use; the product should not be used by those who have localized infections of the nasal mucosa that have not been treated. If there is a need to use this product, it should be applied under the guidance of a physician, do not self-medication, so as not to cause adverse consequences.