Huang Lian Pei Lan in water can be used to clear heat and dry dampness (removing heat and drying dampness), wake up the spleen and open the stomach (promoting the function of the spleen and stomach). Huang Lian Pei Lan has a bitter taste and cold nature, and belongs to the stomach, liver, heart, spleen, gallbladder and large intestine meridians. It has the effects of clearing heat and drying dampness, cathartic fire and detoxification (removing fire, poison and evil qi from the body). It is often used to treat symptoms such as restlessness, high fever, dizziness, vomiting, diarrhea, toothache, and mouth and tongue sores. It should not be used by people with deficiency of yin and fluid, or by people with deficiency of spleen and stomach (spleen and stomach weak and cold). Peilan is pungent in taste and flat in nature, and belongs to the stomach, spleen and lung meridians. It has the effects of awakening the spleen and opening the stomach, and aromatizing and transforming dampness. It is often used to treat symptoms such as epigastric congestion and vomiting, body fatigue, sweetness and greasiness in the mouth, and halitosis. Adverse reactions and contraindications have not been clarified. Huanglian and pellitory together, can play the effect of waking up the spleen and stomach, clearing heat and drying dampness, but the effect of tea is limited, not a substitute for medication to treat the disease, if there is discomfort, it is recommended to go to the hospital in time to see a doctor.