Short for perilla seed, Su Zi is a traditional Chinese medicine with the effects of lowering qi and resolving phlegm, relieving cough and calming asthma (stopping coughing and calming wheezing). Perilla seed is mainly used clinically to treat phlegm congestion, cough and asthma, and intestinal dryness and constipation. Zisu Zi treatment of phlegm congestion, coughing and wheezing, phlegm chest plumping, often with white mustard seed, Laptop to resolve phlegm to lower the qi; treatment of the upper solid under the false wheezing and coughing, it is with half-sia, thick Park, Chen Pi, cinnamon, Angelica and other drugs. Lung deficiency cough and asthma, spleen deficiency loose stools (feces thin and unformed) is prohibited. The adverse reactions and contraindications of Perilla frutescens are not clear. Diet should be light, avoid smoking, alcohol and spicy, cold, greasy food. If you need to use perilla seeds, must be used under the guidance of a professional doctor.