Children with colds and runny noses, if it is clear nasal mucus, mostly consider viral infections, if it is yellow nasal mucus, can be considered to have bacterial infections, need to go to the hospital, to clarify the cause and then treatment.1, viral infections: viral infections will stimulate the mucous membranes of the upper respiratory tract, resulting in vascular congestion of the mucous membrane, secretion, especially the nasal mucous membranes, resulting in runny noses, but also accompanied by nasal congestion, dry cough, pharyngeal discomfort, Sore throat and other symptoms. Mild symptoms to general treatment, pay attention to rest, drink water; if not relieved, can consult a doctor in time, under the guidance of the doctor oral loratadine and other drugs, generally no need for antiviral treatment; 2, bacterial infections: mostly from viral infections, manifested by fever, thick yellow nasal discharge, cough mucus thick sputum, fatigue, sore throat and other symptoms. Treatment can be prescribed antibiotic treatment, such as pediatric cefixime particles, and at the same time to be active symptomatic treatment, giving acetaminophen fever. Children with colds and runny noses pay attention to rest, light diet, eat more vegetables, fruits, eat less spicy, stimulating food, and pay attention to keep warm, avoid cold.