Xihuangcao in water has the effect of clearing heat and removing dampness. Reasonable use of xi huang cao generally have fewer adverse reactions, but xi huang cao is a cool drug, spleen and stomach cold or long-term use of patients may appear abdominal pain, diarrhea, nausea and vomiting and other digestive symptoms. It should be noted that the active ingredients of the drug in water are limited, if you need to use the drug, it is recommended to use water decoction way to take. The plant is the whole grass of the Labiatae family of plants, and the threads of the fragrant tea plant. It has the effects of clearing heat and removing toxins, inducing dampness and jaundice, dispersing blood stasis and reducing swelling. It is used for treating damp-heat jaundice, cholecystitis, diarrhea, dysentery, sores and swellings, and bruises and injuries. The adverse effects of Xihuangcao are not clear, and should be taken with caution by people with cold spleen and stomach. It is also important to note that people who are allergic to this drug should not use it. The medication should be taken under the guidance of a professional doctor, do not take the medication on your own, so as not to delay the condition.