Huanglian Cangzhu Tang is effective in drying dampness, resolving phlegm, clearing the stomach and harmonizing the middle. It has the effects of drying dampness, resolving phlegm, clearing the stomach and harmonizing the middle. It can be used to treat acid vomiting in stomach disease, which is caused by dampness, heat and phlegm. Because of the warm nature of Atractylodes macrocephala, warm can help yang, so those who have a deficiency of yin and internal heat should not take it, so as not to hurt the yin fluid more. Due to the bitter flavor of Cangzhu, can dry dampness, so the gas deficiency sweating should not be used, otherwise it will make the fluid more injury, avoid eating spicy, cold, greasy food. If you need to use drugs, it is recommended that the patient in the doctor’s detailed identification after the use of medical advice, not to buy their own use, so as not to medicine is not appropriate, delay the condition or cause adverse effects on the body.