Colla Corii Asini has the effect of tonifying blood and stopping bleeding, nourishing yin and moistening the lungs (replenishing the body’s yin fluid to nourish the lungs); Angelica Sinensis has the effect of tonifying blood and regulating menstruation, invigorating blood circulation and relieving pain (relieving pain by removing blood stasis), and moistening the intestines and relaxing the bowels. There is no such thing as which one of the two, Colla Corii Asini or Angelica Sinensis, can replenish blood faster. Clinical need to be symptomatic medication. Colla Corii Asini: Mainly used for treating all kinds of blood deficiency, bleeding, dry cough of lung yin deficiency, heat disease and yin injury, heartburn and insomnia, yin deficiency and wind movement. Spleen and stomach weakness should be used with caution. Angelica sinensis: treating blood deficiency and atrophy, irregular menstruation, dysmenorrhea, blood deficiency, blood stagnation, blood cold pain, bruises, rheumatism paralysis, carbuncle (a kind of poisonous sores, occurring on the surface of the body, limbs, internal organs of the acute suppurative disease) sores, intestinal dryness constipation and so on. It should not be taken by patients with fever and bleeding, and should be taken with caution by those with dampness (too much dampness leading to fullness and discomfort in the spleen and stomach) and loose stools. If there is any discomfort, it is recommended to consult a doctor promptly. If medication is needed, it should be diagnosed by a doctor and the treatment should be standardized according to the doctor’s prescription.