Upper respiratory tract infection is one of the most common diseases in babies, refers to the infection of the nose, throat and pharynx, if not treated in time, the inflammation is easy to involve other organs, causing complications, the symptoms of upper respiratory tract infection in babies are as follows: the symptoms of the lighter ones are only nasal congestion, runny nose, sneezing, cough, headache, fatigue and other symptoms, which can be cured in 3 to 4 days. Severe cases are often accompanied by fever, sore throat, hoarseness, swollen and congested tonsils, irritability, due to nasal congestion and nasopharyngeal secretions baby often open mouth breathing, and even affect the milk, can be accompanied by loss of appetite, mental depression, in addition to cough, runny nose, vomiting, abdominal pain, diarrhea, etc. Sometimes the temperature can reach 39-40 degrees Celsius, lasting from 2-3 days to more than 10 days. A small number of babies may have febrile convulsions at the onset of the illness, but after the fever subsides, no further attacks occur and there are no mental abnormalities or sequelae. Parents should not be overly nervous about caring for their babies with upper respiratory tract infections, but should observe the changes in the baby’s spirit, complexion and temperature, and give the necessary measures according to the situation, and if there is an emergency such as high fever and respiratory difficulties, seek medical attention in time for proper symptomatic treatment.