Green Tangerine Peel Classic Formulas … Natural Herb Library

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Soothes the Liver and harmonizes the Stomach - Xiao Qing Pi is used for distending discomfort, belching, nausea, poor appetite, or epigastric constraint when constrained Liver Qi disrupts digestion.
Reduces food stagnation and focal distention - compared with ordinary culinary citrus peel, it more forcefully breaks up lingering middle-burner blockage and relieves fullness after rich food.
Stops pain from constrained Qi - it is used in smaller, more aromatic formulations for flank, epigastric, or lower-abdominal discomfort when Qi is bound but not yet severely knotted.

Xiao Qing Pi with Xiang Fu and Fo Shou - a common pairing style for Liver-Stomach disharmony with belching, nausea, and distention.
Xiao Qing Pi with Chen Pi and Shan Zha - used when Qi stagnation and food retention combine to cause fullness and poor appetite.
Xiao Qing Pi with Xiao Hui Xiang and Wu Yao - a constrained-Qi pain pairing for lower-abdominal cold-stagnation patterns.

Current Chinese materia medica summaries describe Xiao Qing Pi as a warm, bitter-acrid immature citrus specification used to soothe the Liver, harmonize the Stomach, and relieve distention.
The smaller whole-fruit form is closely related to Ge Qing Pi and is not simply a duplicate of the larger quarter-peel Qing Pi preparation.
Compared with the standard Qing Pi record in this repo, Xiao Qing Pi is written with a slightly more digestive and stomach-harmonizing emphasis.