Ground urchin head, also known as ground urchin herb, has the effect of clearing heat and detoxification (removing heat, poison and evil from the body), diuretic and reducing swelling. It can be used for colds and other diseases. Pregnant women should take it with caution, and those with cold spleen and stomach (symptoms of abdominal distension and pain, lack of warmth in the limbs, body sleepiness, or loose stools or stools discharging undigested food) should use it with caution. The herb is usually taken from the whole herb of the plant of the Asteraceae family, and is also known as “bitter earth gall” and “grass shoe root”. It is bitter, pungent and cold in nature. Generally take the concocted Dijianzhao into the formula decoction, but also can be fresh plants after pounding the external compress or boiled water fumigation. It is used for colds, acute tonsillitis, pharyngitis, conjunctivitis, epidemic encephalitis B, whooping cough, acute jaundice hepatitis, cirrhosis ascites, acute and chronic nephritis, boils, eczema. This medicine is bitter and cold, easy to hurt the stomach and intestines, should not be used for a long time, if you need to take, please use it properly under the guidance of a physician. Patients are advised to consult a doctor if they feel unwell, so as to avoid any delay in their condition.