Prince's-Feather Fruit Classic Formulas … Natural Herb Library

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Breaks up accumulation and relieves abdominal fullness ... Shui Hong Hua Zi is used for abdominal distension, masses, and stagnant patterns where food, water, and blood stasis overlap.
Strengthens the Spleen and promotes digestion ... traditional use includes poor appetite, food stagnation, and a sluggish middle burner with damp retention.
Promotes water movement and reduces swelling ... regional practice especially values it for edema, ascites-like patterns, and chronic hepatosplenic congestion.

Regional edema and ascites decoctions ... Shui Hong Hua Zi is used with blood-moving, Spleen-strengthening, and diuretic herbs when swelling and accumulation coexist.
Food-stagnation and abdominal-distension prescriptions ... it can be added when the middle burner feels blocked and heavy.
Blood-stasis or mass-softening combinations ... traditional use often places it beside stronger accumulation-breaking herbs rather than as a lone remedy.

Traditional descriptions emphasize breaking up accumulation, strengthening the Spleen, promoting diuresis, and easing abdominal fullness.
Regional handbooks also connect the fruit with chronic hepatitis, cirrhotic ascites, splenic enlargement, and digestive stagnation patterns.
Its slight coldness and moving quality explain why it is not treated as a gentle daily tonic.