Chinese Waxgourd Peel Classic Formulas

Primary Actions

Promotes urination and reduces edema - Dong Gua Pi is a gentle diuretic peel used for swelling, water retention, puffy limbs, and damp accumulation when stronger draining herbs would be excessive.
Clears summer-heat and relieves vexation - traditional use includes hot-weather thirst, heaviness, irritability, and damp summer discomfort, especially when fluid metabolism is sluggish.
Lightly transforms dampness without damaging Qi - compared with harsher draining herbs, the peel is food-like and mild, making it suitable for edema in weaker constitutions.
Supports the Lung's fluid pathways - some sources also place it in mild phlegm-fluid and upper-body water-retention presentations because its cooling, light, and descending nature helps water move downward.

Dong Gua Pi with Fu Ling Pi and Da Fu Pi - classic edema-pairing logic when the goal is to promote urination gently and move superficial water swelling downward.
Dong Gua Pi with Yi Yi Ren and Chi Xiao Dou - dampness and swelling strategy for puffy limbs, heaviness, and sluggish fluid metabolism.
Dong Gua Pi summer-heat decoction - food-medicine use in warm weather for thirst, swelling, and irritability with internal dampness.

TCM Wiki describes Dong Gua Pi as sweet and cool, entering the Lung and Small Intestine channels, with actions of promoting urination and relieving edema.
American Dragon and related materia-medica summaries emphasize its value when edema is mild to moderate and the patient is too weak or too heat-affected for stronger draining methods.
Traditional comparison with winter-melon seed highlights that the peel is the gentler fluid-moving part of the plant and is especially associated with swelling and summer-heat.