At present, there is no clear clinical time for taking Colla Corii Asini, the specific time to take should be under the guidance of a physician, according to their own condition and constitution to judge and decide. Generally speaking, it can be taken in the morning or at night. Colla Corii Asini enters the lung, liver, kidney meridian, with nourishing yin and tonifying blood (nourishing the blood in the body), moistening the lungs and stopping bleeding (nourishing the lungs and stopping bleeding) efficacy, clinically used with other medicines in the treatment of blood deficiency, bleeding, lung yin deficiency and dry cough (lung yin deficiency loss of moistening and coughing) and other diseases. It should be noted that Colla Corii Asini is afraid of rhubarb. This product is sticky and will hinder digestion, so it should be used with caution for people with weak spleen and stomach. Taking Colla Corii Asini in the morning or at night will not affect the efficacy of Colla Corii Asini, but in order to ensure the safety of the medication, it is best to decide on the specific time of taking Colla Corii Asini after the physician’s diagnosis. If you have any symptoms, we suggest that you consult a doctor in time and follow the doctor’s instructions, do not use your own medication to avoid any adverse reactions.