1. Ejiao can be steamed with rice wine and American ginseng. Crush colla Corii Asini and dissolve in boiling water for 2 minutes. It only takes 1 min for microwave oven to use medium fire. 2. Take 1-2 times a day on an empty stomach to ensure digestion and absorption. Three grams each time. 3. Contraindications and precautions: diabetic patients, those with exogenous fever and those who are allergic to this product are prohibited. Use with caution those with spleen and stomach weakness, vomiting and diarrhea, abdominal distension and loose stool, dyspepsia, cough and excessive phlegm, and allergic constitution. Pregnant women and patients with hypertension should take it under the guidance of a doctor. Precautions 1 Avoid greasy food. This product should be taken before meals. 3. Take it according to usage and dosage, and children should take it under the guidance of a doctor. 4. If the symptoms do not improve after two weeks or during the medication, or the symptoms get worse, or new serious symptoms appear, you should stop taking the medicine immediately and go to the hospital. 5. It is forbidden to use this product when its characteristics change. 6. Children must use it under the supervision of adults. Please keep this product out of the reach of children. 7. If you are using other drugs, please consult a doctor or pharmacist before using this product.