Deficiency fire needs to be treated according to clinical symptoms after identification and typing. Deficiency fire is divided into heart yin deficiency, lung yin deficiency, stomach yin deficiency, kidney yin deficiency and other causes of deficiency fire, which can be treated with Tianwang tonic Dan, Nourishing yin and clearing lungs pills, yin deficiency and stomach pain particles, and large tonic yin pills, respectively. 1. Heart yin deficiency: mainly manifested as insomnia, sleepy dreams, dry mouth, heartburn, panic and chest tightness, emaciation, facial redness and so on. Commonly used medicines: Tianwangxinzhundan (Heavenly King’s Heart Replenishing Pill), Pai Zi Xin Yang Pill. 2. Lung Yin deficiency: mainly manifested as dry cough, cough with little sticky sputum, dry mouth and throat, body thinness, hot hands and feet (irritability and stuffiness), hoarseness or hoarseness of voice, sweating at night, facial flushing. Commonly used drugs: Nourishing Yin and Clearing Lung Pill, Baihe Solid Gold Pill. 3. Stomach Yin deficiency: mainly manifested as vague heartburn in the stomach, dry heaving, regurgitation, hunger and reluctance to eat, dry mouth and throat, constipation, and small amount of urine. Commonly used drugs: yin deficiency stomach pain granules, nourishing yin and clearing the stomach granules. 4. Kidney yin deficiency: mainly manifested as unstable and loose teeth, hair loss, seminal emission, low menstrual flow, dizziness, tinnitus, insomnia and poor memory. Commonly used medicines: Zhi Bai Di Huang Wan, Da Zhen Yin Wan. Chinese medicines or proprietary Chinese medicines need to be used under the guidance of a Chinese medicine practitioner to identify the symptoms, and individuals should not use them blindly to avoid adverse consequences.