Notes on Bing Wang's Su Wen Zhi Zhen Da Lun. Later generations called it benefiting fire to eliminate yin or supporting yang to chase yin. That is to say, the method of supporting yang and benefiting fire is used to eliminate yin excess.
It is often used for patients with yin-cold syndrome caused by deficiency of kidney-yang and failure of vital door fire.
Symptoms include back pain, soft feet, cold body, impotence, diarrhea, scanty abdomen, unfavorable or long urination, pale tongue, obesity, and heavy pulse.
The treatment method should be warming and tonifying kidney yang, dispelling yin cold, and treating with Shenqi Pill and Gui You Drink.