Budesonide nasal spray is a drug commonly used in the clinical treatment of rhinitis and sinusitis, and can be used by children over 6 years of age. The number of days of medication depends mainly on the condition of the child. If the condition does not improve after half a month of continuous medication, you need to stop the medication and go to the hospital for further examination to clarify whether you need to add other medications or change to other nasal sprays. Children should be allowed to exercise more in their lives to increase their resistance and reduce the chances of rhinitis developing.