Colla Corii Asini belongs to the same source of medicine and food, it can be consumed directly, or can be melted and taken into soup, pills and powder. Colla Corii Asini has the effect of tonifying blood and nourishing yin, moistening dryness and stopping bleeding. It is used for treating anemia, dizziness, palpitations (rapid heartbeat, often accompanied by panic), hemoptysis, hematemesis, blood in urine, blood in stool, irregular menstruation, metrorrhagia (excessive menstruation or more than a few drops of menstruation), fecal leakage (a small amount of bleeding from the vagina in the early stages of pregnancy), heat illnesses that injure the yin, deficiency and restlessness, and insomnia (void, restless, and unable to sleep). The adverse reactions and contraindications of Colla Corii Asini are still unclear. This product is sticky and greasy, hindering digestion, so it should be used with caution for those with weak spleen and stomach. It should be noted that the efficacy of a single Chinese medicine is limited, and clinically it needs to be used in combination with other Chinese medicines after identification by a Chinese medicine practitioner.