The best time to take Colla Corii Asini is after menstruation and it is recommended that patients take it before breakfast and after dinner. Colla Corii Asini has the function of nourishing blood, nourishing Yin and moistening dryness. Taking Colla Corii Asini after menstruation is beneficial to the body to replenish blood, thus relieving symptoms such as anemia, pallor, mental weakness, fatigue and weakness due to blood loss during menstruation. It is recommended that patients take Colla Corii Asini before breakfast, when the body’s metabolism is usually strong, which helps to promote the digestion and absorption of Colla Corii Asini, which can quickly bring out the blood tonic effect. In addition, patients can also take Colla Corii Asini after dinner, when the skin’s absorption capacity is stronger, which helps to promote the absorption of Colla Corii Asini, so that the skin has sufficient blood, keeping it smooth, delicate and elastic, and achieving the effect of beauty. Since Colla Corii Asini is a tonic herbal medicine, excessive consumption may cause symptoms such as fire and constipation, so it is recommended that patients consume it under the guidance of a doctor.