The side effects of Fish Scale Herb are not clear, improper use may cause diarrhea and other uncomfortable symptoms, it is recommended to use under the guidance of a medical professional to identify the symptoms. Fish Scale Grass, also known as Pig’s Mane Grass, is the dried whole grass of the wire fern plant of the Wire Fern family. It is slightly bitter in taste, cool in nature, belonging to the liver and kidney meridian, with the effect of clearing away heat and detoxification (clearing away heat and toxicity in the body), diuresis and lymphatic drainage. It is used in treating colds and fever, lung-heat cough, damp-heat diarrhea, dysentery, gonorrhea, leucorrhoea, mammary carbuncle, scrofula (mainly referring to cervical lymph node tuberculosis), furuncle (a skin disease referring to severe furuncle), scald, and poisonous snakebite. The adverse effects and contraindications of the drug are not known. Due to its cool nature, improper intake may damage spleen yang and cause diarrhea and other discomforts. If there is a need to use this medicine, it is recommended to use it under the guidance of a professional physician and not blindly. If discomfort occurs after taking the medicine, it is recommended to consult a doctor in time and adjust the treatment according to the doctor’s instructions.