Black fungus is a kind of dual-use Chinese medicine, cloud ear is a kind of food, no drug efficacy and effect, so the two can not be compared to the role of efficacy. Black fungus is a kind of dual-use traditional Chinese medicine, taste sweet, sex flat, belonging to the lungs, spleen, large intestine, liver meridian, there is a tonic blood, moistening the lungs to stop coughing, bleeding and other efficacy, clinically used for qi deficiency and blood deficiency, lung deficiency cough, coughing, epistaxis, bloody diarrhea, hemorrhoid bleeding, women’s leakage (menstrual bleeding or drip more than one), high blood pressure. Yun Er is a kind of food, and does not have the efficacy and effect of drugs, and can not be compared with fungus. If patients need to use drugs, should be under the guidance of a professional physician, so as not to blindly use drugs, resulting in adverse consequences.