A 61-year-old woman with a history of asthma had suffered from wheezing, shortness of breath, chest tightness, cough, and sticky sputum for over 30 years. She needed to use bronchodilators, chest percussion, and steam inhalation for the purpose of relieving these symptoms. Based on the concept of Traditional Chinese medicine, patients have difficulty breathing due to excessive sputum, which is the product of lung inflammation. Therefore, the main method of improving inflammation is to remove heat from the lungs. After four months of treatment, the patient's lung function has been significantly improved, and the demand for bronchodilators has also been reduced.