Summary of case history,　The patient had recurrent dyspnea, general muscle pain, and fatigue for more than one year. He was diagnosed and treated in the local hospital, Peking Union Medical College Hospital, and our hospital. It was considered that lung involvement in Systemic Vasculitis and pulmonary infection. The patient took methylprednisolone tablets regularly to suppress immunity, but the lung involvement still progressed and pulmonary infections occurred repeatedly. One month ago, the patient's respiratory symptoms worsened again, accompanied by muscle soreness and fatigue. Although antibiotic treatment was actively used and the dose of methylprednisolone tablets was increased, the patient's symptoms were still poorly controlled. He is now hospitalized in our department for further systematic diagnosis and treatment.,TCM diagnosis,　Lung Impediment (Syndrome of Phlegm and Dampness Retain in the Internal, Syndrome of Pathogenic Factors Hidden in the Pleurodiaphragmatic Interspace).,Western medicine diagnosis,　1.Systemic Vasculitis, Giant Cell Arteritis; 2.Polymyalgia Rheumatica; 3.Pulmonary Infection; 4.Pulmonary Interstitial Fibrosis; 5.Multiple Cranial Nerve Paralysis; 6.Reflux Esophagitis; 7.Severe Osteoporosis; 8.Fatty Liver Disease, Hepatic Dysfunction; 9.Lacunar Infarction; 10.Anal Canal Prolapse.,Therapeutic methods,　Traditional Chinese medicine treatment is based on drying dampness and resolving phlegm, as well as opening the membrane source, using Membrane-Source-Opening Beverage and Three-Seed Filial Devotion Decoction. Western medicine treatment includes intravenous infusion of 80 mg of methylprednisolone sodium succinate once a day (d1-d5), and 0.4 g of cyclophosphamide for injection once every two weeks, along with anti-infection, calcium supplementation, and promotion of calcium absorption, inhibit gastric acid, protect liver, anti-platelet aggregation.,Clinical outcomes,　The patient's symptoms such as dyspnea, cough and sputum, muscle aches, difficulty swallowing, dry mouth and eyes, and fatigue were significantly improved, and inflammatory and infection indicators were significantly reduced.