Chen Pi has the effects of regulating qi and strengthening the spleen (regulating qi and strengthening the spleen), drying dampness and resolving phlegm (removing phlegm from the body by drying dampness). It has the effect of treating epigastric distension and fullness, poor food and vomiting and diarrhea, cough and phlegm. Chenpi is bitter, pungent and warm in nature. It belongs to lung and spleen meridians. It can regulate qi, strengthen the spleen, dry dampness and dissolve phlegm, and is often used in treating stagnant qi in the spleen and stomach, vomiting, eructation (hiccups), coughing with damp phlegm and cold phlegm, and chest paralysis (stuffy pain in the chest), etc. It is also used in the treatment of pain in the chest. It is also used in conjunction with Cangzhu and Houpu to treat cold and dampness in the middle Jiao, stagnation of qi in the spleen and stomach, which manifests as distension and pain in the epigastrium (abdomen), fear of cold and love of warmth, nausea and vomiting, diarrhea and distension of the epigastrium and stomach, lack of food and drink, bland and insipid mouth, and white and greasy tongue coating. The precautions, adverse reactions and contraindications of this product are not clear. Need to use Chen Pi, it is recommended to standardize the use of Chinese medicine practitioners under the diagnosis, to avoid causing adverse reactions.