Fishweed boiled water to drink is generally not harmful to the human body. Fishweed has the effect of clearing away heat and detoxification (clearing away heat and poisonous Qi in the body), eliminating carbuncle and pus (eliminating carbuncle and pus), diuretic and diaphoretic (improving urinary dribbling, urinary volume of small and incomprehensible problems), and it can be used for the treatment of lung carbuncle and vomiting of pus, phlegm heat and coughing, hot diarrhea, hot drenching (burning and tingling when urinating, accompanied by frequent urination and urination, discomfort in the small abdominal tract), carbuncle, swelling, and poisonous sores and other illnesses. Adverse reactions and contraindications of fishweed is not clear, deficiency cold syndrome and yin sores and ulcers should not be taken. Fishweed boiled water is usually not harmful to the human body, moderate drinking can improve lung carbuncle spitting pus, phlegm fever coughing, hot diarrhea, hot showers and other diseases, but the role of fishweed boiled water is limited, can not be used to treat the disease, and is not recommended to boil their own water to drink, fishweed boiled water to drink or to take fishweed should be consulted with a doctor first to avoid taking medication on their own.