Children with colds sleep with cough, need to pay attention to whether there is nasal secretion backflow, resulting in pharyngeal irritation. Because children’s nasal mucosa capillaries are relatively rich, easy to congestion when a cold, resulting in increased secretions, and at the same time by hot and cold stimulation or odor, it is more likely to increase secretions. If the parents have allergic rhinitis, the genetic symptoms will be more obvious, when sleeping because the position is lying down, the nasal secretion is easy to backflow to the pharynx caused by postnasal leakage syndrome, coughing symptoms will easily aggravate. In the treatment can not simply oral cough medication, it is recommended to sleep cushion, keep the position for the slope position, to reduce the nasal secretion backflow. At the same time, children are given hypertonic seawater nasal spray to clean up the nasal cavity, to achieve the reduction of secretion accumulation, thus relieving the symptoms of coughing, if necessary, can be taken orally to anti-allergic drugs, such as cetirizine to reduce the production of nasal secretions.