The child’s nasal mucus backflow caused by coughing, may be allergic rhinitis, adenoid hypertrophy and other factors, need to clarify the cause of the disease to give targeted treatment and therapy. If the allergic rhinitis caused by snot, may flow back into the pharynx, and even inhalation of bronchial cough, treatment can follow the doctor’s instructions with physiological sea saline rinse nasal relief, if necessary, you can use glucocorticoid nasal spray nasal spray treatment. At the same time, pay attention to the prevention of colds and flu. Adenoid hypertrophy leads to poor drainage of nasal secretions, lying down to sleep, nasal secretions drip into the pharynx, can also cause coughing, can be appropriate to elevate the head and neck to alleviate the symptoms, if the adenoid hypertrophy symptoms are more serious, if necessary, but also need to be surgical treatment. Children’s nasal discharge caused by coughing may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, to give targeted treatment or treatment. The medication should be in accordance with the doctor’s instructions.