Summary of case history,　A 10-year-old boy was admitted to the pediatric outpatient department of our hospital on October 11, 2020.Due to "intermittent cough for more than 10 months, aggravation and intermittent fever for 26 days". In recent 10 months, the child had intermittent cough, yellow phlegm and yellow nose. He had visited many hospitals and repeatedly diagnosed "pneumonia" and "bronchitis" caused by bacterial infection. He was treated with intravenous or oral antibiotics for many times.26 days ago, the patient's cough and phlegm symptoms aggravated again, accompanied by intermittent fever. Considering that the child was prone to colds, recurrent cough of yellow phlegm, runny nose, recurrent pneumonia, sinusitis, and otitis media, combined with the results of whole exon gene detection of CFTR gene variation, the final diagnosis of cystic fibrosis was made.After discharge, the patient continued to stay in the anti-infection and anti-inflammatory treatment program. The child still had low fever, cough and cough. In order to seek treatment of integrated Chinese and Western medicine, he came to see a doctor here. The present symptoms of children include occasional cough, low cough, frequent cough of yellow sputum, relatively easy to cough up, the amount of sputum about 10-15ml each time, low fever, temperature 37.5 degrees Celsius, runny nose, yellow turbed nose, no nasal congestion, nasal itching, normal appetite, normal stool.This child usually feel tired do not want to activity, often spit white saliva and saliva, cold after easy to flow yellow nose, cough yellow sputum. Physical examination: thin body, general spirit, yellow complexion, red lips, red pharynx, bilateral tonsil swelling, thick breath sounds in both lungs, wet rales can be reached, especially in the left lung. Tongue slightly red, thin yellow moss, floating pulse.,TCM diagnosis,　Lung paralysis(lung deficiency and phlegm stasis, wind-heat exogenous syndrome),Western medicine diagnosis,　Cystic fibrosis,Therapeutic methods,　Traditional Chinese medicine treatment to wind dissipation, and to replenish qi, expectorant, blood stasis; Western medicine treatment to anti-infection, anti-inflammatory.,Clinical outcomes,　After taking the medicine, the symptoms were controlled and no lung disease occurred for half a year.