When a 7-month-old baby has a cough, if the cough is preceded by nasal congestion, runny nose, red throat and a slight fever, it is an upper respiratory tract infection that causes the baby to cough. At this time, laryngitis and inflammation of the trachea are more common, and the baby needs to be treated with anti-inflammatory drugs, and can take Pudilan Anti-inflammatory Oral Liquid orally. If the cough is more serious, you can also use Lung Power Cough Compound to stop coughing and dissolve phlegm, or you can use Pediatric Lung Heat Cough and Asthma Oral Liquid, which is also effective in stopping coughing and dissolving phlegm. If the cough is severe, accompanied by severe fever, poor spirits and loss of appetite, you need to take your child for a CT or plain film examination of the chest. If the cough is caused by bronchitis or pneumonia and the child’s cough is severe, the child should be hospitalized for treatment. During the hospitalization, appropriate antibiotics and antiviral drugs should be selected according to the type of infection and intravenous drips should be administered for better results.