Stir-Fried Perilla Seed Classic Formulas … Natural Herb Library

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Directs rebellious Lung Qi downward and stops cough and wheezing ... Chao Su Zi is used when phlegm, cold, or deficient descent causes noisy breathing, cough, and chest fullness.
Transforms phlegm and eases chest constraint ... it is especially suited to cough or asthma patterns where abundant seeds and oily warmth help the Qi descend.
Moistens the intestines and unblocks the bowels ... like raw Su Zi, the stir-fried form helps constipation when dryness or weak downward movement coexists with Lung Qi rebellion.

Su Zi Jiang Qi Tang ... classic formula for wheezing, copious phlegm, and rebellious Lung Qi with lower-body weakness.
Ding Chuan Tang modification logic ... roasted Su Zi is often chosen when wheezing and downward-directing seed herbs are needed.
Run Chang Tang style logic ... oily seed medicinals are used when constipation accompanies deficient fluid movement.

Traditional materia medica describes Su Zi as warm and descending, especially for cough, wheeze, and constipation from impaired Lung and Large Intestine movement.
Stir-frying is a common dispensing preparation that moderates raw seed moisture and brings out a warmer toasted seed character.