1 First, choose casserole or enamel pot to boil Chinese medicine. Iron pot and aluminum pot are not suitable, because the metal ions in the pot will react with Chinese medicine and affect the efficacy.

2. Wash the Chinese herbal pieces for 2-3 times, and pour off the water.

3. Add water again, soak the medicinal materials for 30-60 minutes, and soak the traditional Chinese medicine thoroughly. It is best to add less than 2~3 cm of water.

4, simmer medicine. Boil it with high fire first, and then simmer for 30 minutes. You need to be careful not to boil the medicine. You can't drink the burnt liquid.

5. Filter out the medicine juice and set it aside.

6, add water to the pot, as last time, after the fire is boiled, cook for 30 minutes with low fire, and then filter out the liquid medicine. That is, one medicine is boiled twice.