Hello, Su Zi, or perilla seeds, taste pungent and warm, its function is to resolve the surface dispersal of cold, move qi and broaden the middle; radish seeds, or Lai Chi Zi, the main treatment to eliminate food and bloating, lowering the qi and phlegm; white mustard seeds, warm lungs, phlegm, qi dispersal of knots, through the pain.

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The three medicines are used together to form the San Zi Nourishing Kin Soup, which is used to lower the qi and quicken the diaphragm, dissolve the phlegm and eliminate the food, and it is mostly used to treat the coughing and wheezing phlegm, more phlegm, poor diet, white and greasy tongue coating, and slippery pulse.