Colla Corii Asini can be taken orally all year round, preferably on an empty stomach and after the menstrual period. Gum paste is a good blood tonic, with the effect of nourishing blood and qi, nourishing the skin, and helping to relieve aging, but the spleen and stomach is not easy to digest and absorb, take it on an empty stomach before breakfast, through the daytime activities to promote the gastrointestinal tract peristalsis, can make the body’s metabolic ability to enhance the strong digestion and absorption of blood tonic effect. After dinner, it is good for skin absorption and improvement of skin condition, which is good for beauty. Taking it after menstruation facilitates the body to replenish blood and relieve blood loss during menstruation, but it should not be taken during menstruation, which may lead to menstrual disorders. Colla Corii Asini Syrup is often used to treat symptoms of Qi and Blood deficiency. Those with weak spleen and stomach should avoid it, otherwise it may lead to aggravation of the condition and may even cause diarrhea.