Ume belongs to the same source of medicine and food, with astringent (astringent lung qi) cough, astringent antidiarrheal (through the enhancement of intestinal astringency to alleviate diarrhea) and other efficacy effects. Plum has the effect of astringing the lungs to stop coughing, astringing the intestines to stop diarrhea, restraining roundworms to stop pain, and generating fluids to quench thirst. Clinically, it is mainly used for the treatment of lung deficiency and prolonged cough, prolonged diarrhea, prolonged dysentery, ascarid convulsions and abdominal pain, vomiting, deficiency heat and thirst, blood in stool, blood in urine, hematochezia, hematochezia, enuresis, psoriasis and so on. It is important to note that Wu Mei should not be taken by those who have external superficial evils (evils on the surface of the muscle) or those who have internal solid heat and stagnation. The efficacy of single Chinese medicine is limited, clinically it needs to be used with other Chinese medicines after identification by a Chinese medicine practitioner.