2. Patients with severe symptoms of blood deficiency should take oral decoction three times a day, once before breakfast, once after dinner and once at noon. After the illness is slightly relieved, it can be changed to twice a day, once before breakfast and once after dinner. Consolidation therapy can be changed to Siwu granules, taken orally, three times a day, or taken orally as pill powder. The key to treating blood deficiency syndrome with Siwu decoction is symptomatic application. If blood deficiency is accompanied by qi deficiency, ginseng Radix Astragali can be added to invigorate qi and generate blood; Blood deficiency and blood stasis, add peach kernel and safflower, and change Paeonia lactiflora into Paeonia lactiflora in the prescription; Blood deficiency and cold, add cinnamon, dried ginger and Evodia rutaecarpa to warm the blood vessels; For fever due to blood deficiency, Radix Scutellariae, Cortex Moutan and Rehmanniae Radix should be added. For fetal leakage, add Ejiao and Folium Artemisiae Argyi to stop bleeding and protect the fetus.