Reed root tastes sweet and cold, and can cure lung heat cough and purulent lung abscess: reed root can clear lung heat when entering lung meridian, and it can also cure fever and polydipsia; reed root can radically cure heat stranguria pain, clear heat and diuresis, and can cure heat stranguria pain and short red urine. Often used with cogongrass rhizome and plantain seed. On the EEG of rabbits, the amplitude increased and the frequency decreased, indicating that the function of the central nervous system was inhibited.
Phragmites communis has the effects of clearing away heat, promoting fluid production, relieving vexation, stopping vomiting and inducing diuresis, and is mainly used for treating fever, polydipsia, vomiting due to stomach heat, cough due to lung heat, purulent lung abscess, heat stranguria and astringent pain. ? It can also clear the middle energizer and ventilate heat, and can be used to treat wind-heat cough. It is often combined with mulberry leaves, chrysanthemum and platycodon grandiflorum to dispel wind, clear heat, disperse lung and relieve cough. It can clear away heat, regulate the stomach and stop vomiting, but it is not greasy and obstructs the stomach. It is an important drug for treating vomiting caused by stomach heat. Light can be used alone, and heavy is often accompanied by bamboo shavings, ginger, japonica rice and so on. In order to enhance the effect of clearing heat, reducing adverse reactions and stopping vomiting.