Artemisia annua: bitter, pungent and cold. It belongs to the liver, gallbladder and kidney meridians. This product is pungent, bitter and cold can clear away heat, but pungent does not hurt yin, cold does not hurt middle, and tastes bitter and not dry. It is good at clearing blood heat in liver and gallbladder, especially dispersing yin heat outside, so it is an important drug for treating fever due to yin deficiency. Efficacy: clearing away deficiency and heat, removing bone and steaming, relieving summer heat and stopping malaria. It is often used to warm evil and injure yin, and it is hot at night and cool early; Friends are cold and fever, and tired bones are steamed; Feel the evil of summer, fever, headache and thirst; Malaria, cold and fever, etc.

Cortex Lycii: sweet, light and cold. It belongs to lung, liver and kidney meridians. Efficacy: cool blood and steam, clear lung and reduce fire. This taste is sweet, cold and moist. He is good at clearing liver, kidney deficiency and heat, clearing sweat and steaming bones, clearing lung heat, removing lung and latent fire, cooling blood and stopping bleeding. It is a good product for relieving deficiency-heat and treating bone steaming. Commonly used for fever due to yin deficiency, night sweats and bone steaming; Lung heat cough; Hematemesis, epistaxis, hematuria and other blood-heat bleeding syndromes. In addition, Lycium barbarum bark can also promote fluid production and quench thirst while clearing away heat, and can also be used to treat excessive internal heat and quench thirst.

2. Cynanchum atratum, Radix Bupleuri and Rhizoma picrorhizae:

Cynanchum atratum: It has the functions of clearing away heat and cooling blood, inducing diuresis and treating stranguria, detoxicating and treating sores. Yinchaihu: It can clear deficiency and heat and remove malnutrition.

Rhizoma picrorhizae: It has the functions of clearing away deficiency heat, eliminating malnutrition heat and clearing away damp heat.

3. Usage and precautions of Artemisia annua:

Artemisia annua: decoction should not be decocted for a long time; Or take it orally with ground fruit juice;

4. Usage and precautions of Artemisia annua:

Artemisia annua: The spleen and stomach are weak, and people with diarrhea due to intestinal slippery should not take it.

5. Similarities and differences between Cortex Moutan and Cortex Lycii, Rhizoma Coptidis and Rhizoma Picrorhizae;

Both Cortex Moutan and Cortex Lycii can clear away heat, cool blood and reduce deficiency heat. Can be used for treating vomiting due to blood heat, fever due to yin deficiency, bone steaming, fatigue, etc. For yin deficiency fever and bone steaming hot flashes, whether sweating or anhidrosis, they are often combined to enhance the curative effect. The difference is that peony bark is good at clearing heat and cooling blood, so it is often used for nourishing blood, macula and vomiting. Moreover, Cortex Moutan can promote blood circulation and remove blood stasis, and is often used for blood stasis, amenorrhea, dysmenorrhea, traumatic injury, carbuncle and abdominal pain. However, cortex Lycii is good at clearing away heat, so it is often used for fever due to yin deficiency, night sweats due to yin deficiency and bone heat of vaporization. Moreover, Cortex Lycii can clear lung fire, and is often used for cough and asthma due to lung heat, and also has the effect of treating internal heat and quenching thirst.

Coptidis Rhizoma and picrorhiza Rhizoma are bitter in taste and cold in nature, which can clear away damp heat. Both of them can be used to treat damp-heat diarrhea, and picrorhiza picrorhiza suffers from cold sink, similar to coptis chinensis, and treat gastrointestinal damp-heat, which is accumulated in the lower jiao. Mostly used for damp-heat diarrhea, hemorrhoid swelling and pain. In the absence of Rhizoma Coptidis, Rhizoma picrorhizae is often used instead of Rhizoma Coptidis. Coptis chinensis is bitter and cold, and has strong ability of clearing heat and drying dampness. It is an important drug for clearing away heat, eliminating dampness, purging fire and detoxicating, and is especially good at clearing the stagnation of damp-heat in middle energizer, which can treat various diseases caused by damp-heat. Moreover, Rhizoma Coptidis has a strong ability of clearing away heat and purging fire and detoxifying, and is good at clearing heart, stomach fire, antipyretic poison, and clearing liver and purging fire. Therefore, it is often used for excessive heat, excessive fire, high fever and irritability, excessive heart fire, upset insomnia, carbuncle and furuncle, eczema of skin, swelling and pain of eyes and ears, vomiting due to stomach heat, toothache, hunger, liver fire, vomiting and acid swallowing. Huhuanglian Huhuanglian is mainly used for clearing away deficiency heat and dark color, mainly clearing away damp-heat accumulation in gastrointestinal tract and lower jiao. Huhuanglian Huhuanglian can also dispel malnutrition fever, which is often used for yin deficiency fever, bone steaming hot flashes and infantile malnutrition fever.