A child’s cough, phlegm, and fever may not necessarily be pneumonia, but may be caused by a cold. Most children with pneumonia will have a fever and a high fever, and the temperature may decrease after taking antipyretic medication, but once the medication wears off, the fever will appear again, usually lasting 2-3 days. The most typical manifestation of pneumonia is the increase in respiration, there may be symptoms of dyspnea, severe exhalation can be accompanied by moaning sounds, accompanied by nasal flapping, trigeminal signs and other symptoms. After the child falls asleep, in a quiet environment, put your ear close to the child’s front chest or back, you will hear a gurgling sound similar to water boiling in the lung area. Therefore, you should not judge that your child has pneumonia just by the presence of cough, sputum or fever.