Mometasone Furoate Nasal Spray for children does not have a strict meaning of “course of treatment”, the efficacy of the drug will vary from person to person, clinically based on the control of the condition to determine the duration of use, a few days to a few months can be, and moderate and severe patients usually need to be in the hay fever season 2 to 4 weeks in advance of the prophylactic use. Mometasone Furoate Nasal Spray is a glucocorticoid nasal spray with topical anti-inflammatory activity that can be used for the treatment of allergic rhinitis in children and adolescents over 3 years of age. The efficacy of this product varies from person to person, and the duration of dosing is related to the extent of the disease. The duration of use is determined clinically by the control of the disease and can range from a few days to a few months, while patients with moderate and severe disease usually require prophylactic use 2 to 4 weeks in advance of the pollen season. Mometasone Furoate Nasal Spray may cause nasal irritation, rhinorrhea, pharyngitis, runny nose and other adverse reactions, and the presence of infection of the nasal mucosa, recent nasal surgery and nasal trauma is not recommended for use, in addition to mometasone furoate, benzalkonium chloride, sodium citrate dihydrate and other components of the allergy to the patient is prohibited, so it is recommended that the use of the use of the doctor’s guidance, do not blindly use their own medication.