Maoguan is the dried rhizome of the grass plant leucaena leucocephala, with a slight gas and a slightly sweet taste, it has the efficacy of cooling the blood and stopping bleeding, clearing away heat and inducing diuresis, and can be used clinically for the treatment of blood-heat, nosebleed, blood in the urine and other illnesses.

And folded ear root, also known as fishy grass, is the fresh whole grass or dry aboveground part of Houttuynia cordata, family Sambucus, with fishy smell, astringent taste, pungent and slightly cold medicinal properties, attributed to the lung meridian, with the efficacy of clearing away heat and detoxification, eliminating carbuncle and draining pus, diuretic and diaphoretic, clinically can be used for the treatment of carbuncle and vomiting pus in the lungs, sputum heat and gasping and coughing, carbuncle and swollen toxins, hot dysentery, and dampness and heat leading to frequent urination, urinary urgency, urination and other diseases.