There is no exact time for how long it takes to regulate Yin deficiency and fire exuberance (deficiency of Yin and essence in the body, and hyperactivity of deficiency and fire) with traditional Chinese medicine. The treatment cycle of yin deficiency and fire exuberance is generally 1-3 months, but there can be individual differences depending on the severity of the condition, treatment program, timing of treatment, personal constitution and other factors. Yin deficiency and fire exuberance is mainly caused by overwork, old age and prolonged illness, and too much intercourse. Symptoms include dizziness, tinnitus, five heart-heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest), hot flashes (a burst of heat), and night sweats (abnormal sweating after going to sleep, and sweating stops after waking up). If there are symptoms of Yin deficiency and fire, prompt medical attention is recommended.