If a 5-year-old child develops allergic rhinitis, it’s best to go to the hospital first to see what substances he or she is allergic to, and try to avoid contact. During the change of seasons, you should let your child increase or decrease the clothing in time to avoid catching a cold, because a cold can easily trigger or aggravate the symptoms of allergic rhinitis. Usually if the symptoms of allergic rhinitis, you can consider oral montelukast sodium tablets to anti-allergy, oral rhinitis granules can effectively reduce the nasal mucosa congestion, edema, sensitivity, active symptomatic treatment of allergic rhinitis after the symptoms should have some improvement. It is recommended to take the child to do sports, enhance the ability to resist, when going out, it is best to wear a mask, to avoid contact with allergens.