It is believed that dampness is a key pathological factor contributing to digestive dysfunction in chronic renal failure. Damp pathogens tend to be entangled with or transformed into other pathogenic factors， obstructing the flow of

qi

， disturbing the functions of the

zang

-

fu

organs， and impairing the spleen and stomach's transportation and transformation functions， ultimately leading to disease onset. Based on this understanding， the treatment principle emphasizes dispelling dampness， regulating

qi

， and harmonizing the five

zang

organs. For the syndrome of spleen and kidney

qi

deficiency with dampness， the self-formulated

Buyuan Fengzang Decoction

（补元封藏煎） is used to tonify the kidney， secure essence， strengthen the spleen， and eliminate dampness. For the syndrome of turbid dampness obstructing the lung and stomach， the self-formulated

Sulian Xiexin Decoction

（苏连泻心汤） is applied to open with acrid， descend with bitter， dry dampness， and discharge turbidity. For the syndrome of dampness stagnating and transforming into heat， with concurrent spleen deficiency and liver

qi

stagnation， the self-formulated

Chailian Wendan Decoction

（柴连温胆汤） is employed to soothe the liver， strengthen the spleen， and disperse the accumulation. For the syndrome of damp obstruction with

qi

stagnation and constrained

yang

， the self-formulated

Caozhi Erchen Decoction

（草知二陈汤） is used to resolve dampness， relieve constraint， raise

yang

， and promote the defensive

qi

.