The effects of Colla Corii Asini include tonifying blood, stopping bleeding, nourishing yin and moistening dryness (nourishing yin essence and clearing heat). Colla Corii Asini can treat blood deficiency, dizziness and palpitations, muscle impotence, treating vomiting blood and urinating blood, blood in stool and leakage (excessive menstruation or more than a few drops), heat illness and injury to yin, disturbed sleeplessness, deficiency wind, hand and foot contracture, lung dryness and cough, cough and hemoptysis. Colla Corii Asini is a product of blood and flesh, sweet, warm and moist, as a blood tonic medicine. More for the treatment of blood atrophy, dizziness, palpitations, impotence, etc., especially good treatment of bleeding and blood deficiency. Colla Corii Asini is sweet and sticky, with good hemostatic effect, it is the most important medicine for stopping bleeding. It is often used to treat vomiting blood and urinating blood, bleeding in stool and leakage, fetal leakage in pregnancy (small amount of vaginal bleeding in early pregnancy), and it is especially suitable for those who suffer from bleeding with yin deficiency and blood deficiency. Colla Corii Asini nourishes yin to nourish kidney water, commonly used in cases of yin deficiency. It can be used in the treatment of fever and yin injury, kidney water deficiency and heart fire hyperactivity, upset and sleeplessness; in the treatment of the late stage of warm-heat disease, true yin wanting to be exhausted, internal movement of false wind, hydrophobia, etc. It is also used in the treatment of the late stage of warm-heat disease. Colla Corii Asini nourishes yin and moistens the lungs, and is used to treat lung-heat and yin deficiency, dry cough with little sputum, dry throat and blood in sputum; to treat dryness that injures the lungs, dry cough with no sputum, heartburn and thirst, dry nose and throat; and to treat yin deficiency of the lungs and kidneys, and coughing and hemoptysis with exertion. Colla Corii Asini is sticky and greasy in nature, which hinders digestion, so it should be used with caution for people with weak spleen and stomach, and those who have little food and loose stools (thin and unformed feces). In addition, it must be taken under the guidance of a doctor. Do not use the medicine privately as it may cause damage to the body.