There is no such thing as whether or not you can take Colla Corii Asini in spring. Colla Corii Asini can be used for blood deficiency and atrophy, muscle impotence and weakness, dizziness and palpitations (rapid heartbeat, often accompanied by panic), etc. If you have the above symptoms, you can take Colla Corii Asini at any time of the day or night. Colla Corii Asini is a medicinal substance, as a traditional Chinese medicine, it is sweet in flavor, flat in nature, and belongs to the lung, liver and kidney meridians. It has the effect of tonifying blood and nourishing yin, moistening dryness and stopping bleeding, and can be used for blood deficiency and atrophy, muscle impotence and weakness, dizziness and palpitations, and is especially good at treating bleeding that leads to blood deficiency. Colla Corii Asini can also be used for spitting blood and urinating blood, fetal leakage in pregnancy (small amount of vaginal bleeding in early pregnancy), blood leakage (excessive menstrual flow or more than a few drops), it is the essential medicine for stopping bleeding; false wind, blending of hands and feet, restlessness and insomnia, heat disease and injury to yin; lung dryness and coughing, coughing up blood with exertion. It should be noted that Agaricus blazei should be used with caution for those with weak spleen and stomach, and the adverse effects are not yet clear. Do not use the drug on your own, if you are not feeling well, please be treated by a professional doctor.