Ms. Zhang, 70, had been suffering from generalized swelling for 6 months and had persistent back and leg pain, which was not treated by several hospitals. Her blood, urine, stool, chest X-ray, liver function, kidney function, electrocardiogram, thyroid function test and gynecological examination were all normal. When she came to our hospital for treatment, she saw puffy face, bloated abdomen, swollen feet, coldness, pain in the back and legs, unfavorable urination, light fat tongue, slippery moss, petechiae on the side, and sunken pulse. The clinical diagnosis of edema was made, and it was decided to use Chinese herbal fumigation therapy to treat the patient in order to warm the meridians, benefit Qi, resolve stasis and move water. Take 20 grams of mugwort, 15 grams of cinnamon stick, 20 grams of thornbush, 20 grams of windbreak, and 12 grams of safflower. Add clear water for 30 minutes, boil for 30 minutes on a wu hua fire, and fumigate the treatment for 30 minutes every day, to the extent that it is tolerated with slight sweating. 12 days is a course of treatment. After two days of treatment, the patient’s symptoms were reduced and the swelling disappeared after 12 days. Chinese medicine fumigation therapy, also known as “steam bath therapy”, is a method of treating diseases by fumigating the affected area with the medicinal steam produced by boiling the medicine with water. It can play a role in unblocking qi and blood, activating blood circulation and removing wind, cold and dampness, and is an effective external treatment method. Chinese medicine fumigation works through the dual action of heat and medicine. The warming effect can loosen the couples, develop sweat pores, invigorate blood and channels, and relax the spasmodic muscles and tendons. Chinese medicine fumigation therapy can be divided into whole body fumigation and local fumigation according to the fumigation area. According to the principle of diagnosis and treatment in Chinese medicine, for different diseases, different types of diagnosis and treatment, different Chinese medicines should be prepared accordingly, with 4-8 flavors as appropriate. In the process of fumigation treatment, the therapeutic factors of heat and medicine interact with each other and act together on the body to produce synergistic and synergistic effects. Heat is a physical factor, and heat therapy belongs to the category of physical therapy. The thermal effect of the fumigation process is caused by a continuous stream of hot medicinal vapor acting directly on the body by convection and conduction. The pharmacotherapeutic effect is either produced directly by the Chinese medicinal particles escaping from the fumigated drugs on the body surface to kill insects, sterilize, reduce inflammation, relieve itching and cure pain, or enter the body through transdermal absorption and play a pharmacotherapeutic role by agitating the receptors of tissue cells or participating in biochemical processes such as regulating the level of metabolism. In the process of Chinese medicine fumigation, the rich heat and allopathic drugs continue to act on the body, and a series of physiological and pharmacological effects appear. Its curative effect is very good, and has been widely used in clinical practice. The main indications of fumigation therapy are: psychiatric diseases: stroke, (migraine) headache, sleep disorders, depression, anxiety. Orthopedic diseases: frozen shoulder, tennis elbow, cervical spondylosis, lumbar disc herniation, proliferative osteoarthropathy, delayed fracture healing, etc. Gynecological diseases: pelvic inflammatory disease, adnexitis, dysmenorrhea, etc. Dermatological diseases: eczema, urticaria, psoriasis, acne, etc. Surgical diseases: hemorrhoids, prostatitis, etc. In addition, fumigation therapy is also ideal for people with chronic fatigue syndrome and subhealth. Contraindications: hypertension, angina pectoris, acute cerebral hemorrhage, acute and chronic cardiac insufficiency, etc. Precautions: During clinical treatment, patients should be observed for nausea, vomiting, chest tightness, shortness of breath, rapid heartbeat and other discomforts. The water temperature should be 38℃~42℃ to prevent sweating and dizziness, and stop fumigation immediately if there is any discomfort. Patients should be advised to drink water appropriately during the treatment.