It is generally not recommended to drink fishweed infusion for a long time, the specific circumstances should consult a professional physician, do not take on their own. Fishweed is the whole grass or above-ground part of Houttuynia cordata, family Sambucaceae, with the efficacy of draining pus and eliminating carbuncle, clearing away heat and detoxification (removing heat and toxicity in the body), and diuretic effect of gonorrhea. It is used for the treatment of phlegm-heat cough, heat drenching (burning and stinging pain during urination, accompanied by frequent urination and urgency, and discomfort of traction in the abdomen), hot dysentery, carbuncle pus, carbuncle swollen sores, etc. Its adverse effects are not clear. Its adverse reactions are not clear, cold deficiency and yin sores patients should not take. Fishweed is cold in nature and is generally not recommended for long-term use. If you have a need for medication, please take it under the guidance of a medical professional. If you feel unwell, please seek medical advice.