Sheng Di Huang has the efficacy of clearing heat and cooling blood (relieving blood heat by clearing heat), nourishing yin and promoting the production of body fluid; Angelica sinensis has the efficacy of tonifying blood and regulating menstruation, invigorating blood circulation and relieving pain (relieving pain by dispelling stasis of blood), and moistening the intestines and relaxing the bowels. 1. Raw Radix Rehmanniae Praeparata, for treating heat entering the camp and blood (deep invasion of heat into the body with severe symptoms), tongue-redness and thirst, epistaxis (vomiting of blood, nosebleed), internal heat due to yin deficiency, bone-vacuum and labor-heat, thirst due to injury of fluids, thirst due to internal heat (internal fever accompanied by symptoms of overeating, excessive drinking, excessive urination, etc.), and constipation due to dryness of the intestines. It is not suitable for people with spleen deficiency and dampness stagnation, abdominal fullness and loose stools, and the adverse effects are not clear. 2. Angelica sinensis is used for treating blood deficiency and atrophy, irregular menstruation, dysmenorrhea, blood deficiency, blood stagnation, blood cold pain, bruises, carbuncle and gangrene (a kind of venomous sores, occurring on the surface of the body, limbs, internal organs of the acute suppurative disease), intestinal constipation, etc. It is contraindicated in patients with feverish bleeding. It is forbidden to take it for patients with heat-sheng bleeding, and caution should be taken for those with loose stools, and the adverse effects are not clear. If you need to take Radix Rehmanniae Praeparata and Radix Angelicae Sinensis, it is recommended to consult a healthcare professional.