The application scope of Zhenwu Decoction:
1. Spleen and kidney yang deficiency, water dampness retention, difficulty in urination, and edema of the body.
2. Spleen and kidney yang deficiency, difficulty in urination, heavy and painful limbs, aversion to cold, abdominal pain, and diarrhea.
3. It can be used for chronic enteritis, chronic nephritis, cardiogenic edema, etc., which are diagnosed in traditional Chinese medicine as spleen and kidney yang deficiency syndrome.
4. Cough caused by water drink combined with internal cold.
5. Trembling of limbs caused by excessive loss of sweat.
Regardless of the cause of edema, as long as it develops into the stage of kidney yang deficiency and inability to transform water, the treatment must focus on warming yang and promoting water metabolism. If the yang deficiency is ignored and only diuretics are used for temporary relief, it will further damage the kidney qi, which is not beneficial to the disease and may cause adverse consequences.
The ancient treatment principles for edema included four rules: "opening the ghost gate, cleaning the mansion, nourishing the spleen earth, and warming the kidney yang." Using Zhenwu Decoction to treat yang deficiency edema is the major method of warming kidney yang.
