Chenpi can be decocted and taken internally or in pills or powder, the specific use should be decided by the doctor according to the patient’s condition, and it is recommended to follow the doctor’s instructions for the use of medication. Pericarpium Citri Reticulatae has the effect of regulating qi, strengthening spleen, drying dampness and resolving phlegm (expelling dampness by drying dampness and resolving phlegm), and is used in treating epigastric (stomach and abdomen) distension and fullness, poor appetite and vomiting, coughing and phlegm. 1. Qi stagnation: Pericarpium Citri Reticulatae has the efficacy of moving qi, and is used in treating distention and fullness in the epigastrium and abdomen caused by stagnation of qi, vomiting and nausea, and can be combined with other qi regulating medicines such as Hovenia Citri Reticulatae and Muxiang. 2. Phlegm and cough: Pericarpium Citri Reticulatae can dry dampness and dissolve phlegm, regulate the lungs and relieve cough, used for cough and wheezing caused by the loss of lung declination, phlegm and dampness stagnation, can be combined with Semenxia, Poria and other drying and dampness and dissolving phlegm drugs. Chinese medicine needs to be used under the guidance of a Chinese doctor, individuals should not be used blindly, so as not to cause adverse consequences.