1. Methods for regulating yin deficiency and excessive fire. Treatment of yin deficiency and excessive fire should focus on nourishing yin and reducing heat, strengthening the spleen and replenishing qi. The function of Yin is not only to nourish various organs and tissues, but also to restrict Yang Qi to prevent Yang Qi from leaking out. Yang Qi is characterized by heat, movement and rising, while Yin Qi is characterized by cold, stillness and falling. If Yin Qi is deficient, it will be unable to control Yang Qi, leading to a state of deficiency and heat in which Yang Qi is excessive. It is said that "Yin deficiency generates internal heat." In the diet, avoid spicy, greasy, and cold foods to avoid damaging the yin and causing fire. It should be light and eat more foods that can strengthen the spleen, such as yams, peanuts, sweet potatoes, etc. In terms of daily life, pay attention to maintaining good living habits, do not stay up late, drink less or no alcohol, maintain a good mood, participate in some outdoor activities, strengthen exercise, and keep yourself in good physical condition.

2. Clinical manifestations of yin deficiency and excessive fire. Syndrome of yin deficiency and excess fire can focus on different organs. Clinically, the heart, lung, liver, and kidney are the main syndromes. The main symptoms are dry throat and mouth, upset and irritable, burning heat and fire, and red tongue with cracks. , no coating or little coating, thready and rapid pulse. Or symptoms of heart fire such as sleepiness, palpitations, short red urine, etc.; or symptoms of liver fire such as headache, flushed face, dry and painful eyes, bitter mouth and dry stools, stringy pulse, etc.; or lung fire symptoms such as dry cough with little phlegm and blood in the phlegm. Symptoms include bone steam, hot flashes, red cheekbones, dizziness, backache and weakness, spermatorrhea in men, or even yang impotence, and women dreaming of intercourse, etc. The strong fire of each viscera can appear crosswise.