1, prepare Angelica sinensis, Ligusticum chuanxiong, Radix Paeoniae Alba and Radix Rehmanniae Preparata, and rinse them slightly.

2. Soak the medicinal materials for more than half an hour.

3. Put the herbs and water into the pot, and add 2 bowls of water.

4. Pour half a bowl of yellow wine.

5. Bring the fire to a boil and then boil it with low fire until there is only one bowl of water left (about 25 minutes).

6. Pour out the medicine juice.

7. Boil the residue (one dose of medicine should be boiled twice, so as to give full play to the medicinal properties of the medicinal materials), that is, add 3 bowls of water (don't add rice wine) to the remaining medicinal materials, cover the lid, boil it, and then turn down the heat and cook until there is only one bowl of water left (about 20 minutes).

8. Combine the two medicines together.

9. Divide the medicinal juice into two parts, take it once in the morning and once in the evening. Before drinking, add it to warm, and put some honey to taste.

Siwutang is a traditional medicinal diet. It is made of four kinds of medicinal materials, namely Angelica sinensis, Ligusticum Chuanxiong, Radix Paeoniae Alba and Radix Rehmanniae Preparata. It is a classic medicated diet for enriching blood and nourishing blood in traditional Chinese medicine. Siwutang is a common prescription for enriching blood and a basic prescription for regulating menstruation.