Cough with phlegm, dry throat in the morning, yellow and sticky sputum in the morning, occasionally with blood. For such a condition, the first thing you need to determine is how long the medical history is. If it has lasted for a long time, it is advisable to visit a hospital outpatient clinic to check blood tests and chest X-ray, etc., to see if there are any abnormalities. If no obvious abnormalities are seen, it is recommended that Chinese medicine treatment should be the mainstay. As the Internal Canon says, all the five internal organs and six internal organs can cause coughing, not only the lungs. The lungs are delicate organs and are easily affected by various factors, so lung disorders are the most common in clinical practice, which also places a higher demand on the physician, that is, although it is a lung disorder, he or she should have a holistic view, that is, a holistic concept, and use the holistic view to guide the diagnosis and treatment of the disease and to clarify the cause in order to better target treatment. Therefore, although cough is a minor disease, the etiology is complex, which is why there are many chronic coughs in clinical practice that have difficulty in achieving satisfactory results. For this patient, although the tongue and pulse are not seen, from the information obtained, it is due to internal heat, and the identification of the prescription belongs to Shaoyang and Yangming internal heat, which can be treated with the idea of adding and subtracting Xiao Chai Hu Tang, and the effect should still be good.