Generally speaking, if the menstruation is over and there is no more blood, you can take Ajia Gao. Usually during menstruation, menstrual blood should be smooth, so from the treatment point of view, some medicines that nourish and invigorate blood can be used, which can make the menstruation come a little more smoothly, increase the amount of blood, reduce the symptom of pain or alleviate the appearance of blood clots. Colla Corii Asini itself has the function of nourishing the blood, to nourish the blood, tonifying the blood, relatively speaking the nature will be more nourishing and greasy, so it is generally not recommended to eat Colla Corii Asini during menstruation. Due to its nourishing and greasy nature, it will play the role of closing the door to keep the koans, that is, it will lead to the discharge of menstrual blood is not very smooth, prolonged menstruation or the symptoms of dribbling, so in the menstruation period is generally not too much tonic, nourishing and greasy food or drugs. At the end of the menstrual period, according to the patient’s specific diagnosis, if it belongs to the deficiency of qi and blood, you can eat Colla Corii Asini.