What does a little red herb do?

The herb has the functions of clearing away heat, promoting diuresis, cooling blood and detoxifying toxin. It is mainly used for treating oral ulcer, urinary tract infection, eczema, traumatic injury, upper respiratory tract infection, etc. It can be taken orally or externally. When taken orally, it is mainly used for decoction. For external use, appropriate amount can be decocted and washed or applied to the affected area.