Jin Zhen Oral Liquid is a common pediatric drug, can be used to clear heat and detoxification, expectorant and cough, in bronchitis, pneumonia, cough and phlegm can still be useful. Dosage: 6 months to 1 year old, 1 time 5ml, 3 times a day; 2-3 years old, 1 time 10ml, 2 times a day; 4-7 years old, 1 time 10ml, 3 times a day. 8-14 years old, 1 time 15ml, 3 times a day, can be used for 5-7 days to observe the effect. If the cough is relieved and the symptoms are relieved, you can stop the medicine in time. If the cough is still heavy, or if there is phlegm that cannot be easily coughed up, it is recommended to apply anti-infective drugs at the same time, such as cephalosporin anti-inflammatory drugs for bacterial infections and azithromycin anti-inflammatory drugs for mycoplasma infections.