When children have symptoms such as cold, runny nose and cough, it is usually due to the fact that the child’s immune function is relatively low and is easily infected with viruses or bacteria, and when viruses or bacteria invade the nasal cavity, it causes the child to have a runny nose, sneezing and nasal congestion. If the virus or bacteria cannot be controlled in time, the infection can go downstream and invade the respiratory system, causing the symptoms of coughing. Some children also have a cold, runny nose, and cough due to viral or bacterial infection of both the upper and lower respiratory tracts. There are also children who have been exposed to patients with influenza, which causes the flu virus to invade the respiratory tract and cause these symptoms. When a child has symptoms of cold, runny nose and cough, he or she should drink more water and eat more fruits and vegetables to promote recovery from cold symptoms. If the symptoms are more serious, you can take pediatric aminophenol xanthamine pellets under the guidance of a doctor.