Aunt period here mostly refers to the menstruation period. Generally speaking, you can take Colla Corii Asini during menstruation, but you need to take it in moderation. Colla Corii Asini belongs to the same source of medicine and food, with sweet flavor and flat nature. It has the effect of tonifying blood and nourishing yin, moistening dryness and stopping bleeding. It is mainly used for the treatment of blood deficiency, dizziness and palpitations (rapid heartbeat, often accompanied by panic), muscular atrophy, insomnia, lung dryness and cough, coughing and hemoptysis, vomiting and urinating blood, blood in the stool and leakage of blood (excessive menstruation or more than a few drops), and fetal leakage of pregnancy (small amount of bleeding from the vagina in the early stages of pregnancy). It is important to note that Colla Corii Asini is sticky and greasy, which hinders digestion, so people with weak spleen and stomach should be cautious of using Colla Corii Asini. If you need to take Colla Corii Asini during menstruation, it is recommended to consult a doctor before use.