Excessive Yin deficiency and fire (deficiency of Yin and essence in the body and the appearance of hyperactive deficiency and fire) is mostly caused by Yin deficiency of the liver and kidney (insufficient Yin fluid in the liver and kidney), and the clinical practice is to nourish the liver and kidney as the main principle to regulate internal heat. Yin deficiency and hyperactivity of fire refers to insufficient Yin fluid in the body and reduced ability to restrain Yang energy, resulting in the appearance of internal heat. This disease is most closely related to yin deficiency of the liver and kidney, and is mainly caused by old age and prolonged illness, overwork or too much intercourse. Therefore, nourishing the liver and kidney is the main treatment principle. Patients with yin deficiency and exuberant fire can regulate internal heat by nourishing the liver and kidneys, such as the use of wolfberry and chrysanthemum dihuang soup with subtractions or wolfberry and chrysanthemum dihuang pills, commonly used Chinese medicines are wolfberry, ripened earth, chrysanthemum, Chinese yam, zedoary, poria, and so on. Patients with yin deficiency and exuberant fire can also be treated with acupuncture, such as Hegu, Taichong, Liver Yu, Kidney Yu, Taixi, Sanyinjiao, Ashigaru, Yinlingquan and other acupoints, to adjust the balance of yin and yang and get rid of the effect of internal heat. If a patient is diagnosed with yin deficiency and fire exuberance, it is recommended to actively cooperate with the Chinese medicine practitioner’s treatment, and not to use medication by oneself to avoid causing adverse reactions. Acupuncture should be carried out by a professional practitioner to avoid any risks.