Excess of yang and deficiency of yin is a phenomenon of extreme deficiency of yang, which leads to yin deficiency, while excessive fire due to yin deficiency is caused by failure to adjust in time after yin deficiency, which will lead to internal fire for a long time, thus forming the problem of excessive fire due to yin deficiency. Therefore, the fire of yin deficiency is flourishing, which comes from the excess of yang and the decline of yin. Both are yin deficiency. The performance of yang flourishing and yin failing is basically the same as that of yin deficiency and fire flourishing. There will be problems such as cheek redness, irritability, insomnia and dreaminess, night sweats, frequent urination and so on. It's just that hyperactivity of fire due to yin deficiency is a more serious phenomenon, and it is more thirsty than hyperactivity of yang and decline of yin. Mouth desquamation is caused by yin deficiency and fire flourishing, and it needs nourishing yin and clearing fire to solve the problem. You can take Niuhuang Jiedu tablets or soak Semen Cassiae and Chrysanthemum morifolium in water. A light diet and not eating spicy food can solve the problem. Vegetables contain trace elements, and eating more vegetables can ensure that trace elements are not missing. If trace elements are insufficient, people can also take nutritional supplements that supplement trace elements, such as protein powder. This is my answer to your question. Thank you.

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