Nasal congestion in children should be selected according to different causes of different treatments, commonly used methods are: nasal cleaning, nasal spray, oral medication. 1. If a child’s blocked nose is caused by sticky nasal mucus, you can use saline to clean the nasal cavity, after the sticky mucus is cleaned up, the symptoms of blocked nose can be relieved immediately. 2. If a child’s blocked nose is caused by a cold, you can use pediatric cold granules; allergic rhinitis can be caused by the use of mometasone furoate nasal spray nasal spray, or oral antihistamine relief, such as cetirizine. When your child has a blocked nose, you need to take your child to the pediatrician at the hospital to find out the cause of the blocked nose and give him or her the appropriate intervention. It is recommended to use medication under the guidance of a doctor, not blindly self-medication to avoid adverse effects.