Drill Leaf Aster has the effect of clearing heat and removing toxins (removing heat, toxins and evil from the body). Diamond-leaf Aster, also known as Rui Lian Cao, is also known as Diamond Aster, White Chrysanthemum, and Earth Chrysanthemum. It is the whole herb of the plant Aster indica, family Asteraceae. It has a bitter and sour taste and is cool in nature. It has the effect of clearing heat and detoxifying toxins, and is used as a main treatment for carbuncles (e.g., impetigo, folliculitis, boils, herpes, etc. in Western medicine) and eczema. It is often used in combination with dandelion and forsythia to treat carbuncles and swellings, e.g. canker sores (i.e. breast abscesses in western medicine) with symptoms such as redness, swelling, heat and pain of the skin; and eczema with symptoms such as pimples and itching of the skin from time to time, and is often used in combination with Poria and Angelica sinensis. Consult your physician for the combination of drugs. In addition to internal use, Ruiliancao can be used externally, appropriate amount of mashed, applied to the affected area. It is recommended to use the drug under the guidance of a doctor.