中医认为,芦根与麦冬均有清热润燥功能。芦根味甘,性寒,入肺、胃经。善滋阴养肺,上可祛痰排脓、清热透疹,中可清胃热、生津止渴,下可利小便导热下行。而麦冬味甘、性微寒,入心、肺、胃经。能养阴润肺、化痰止咳。用于治疗阴虚肺燥、干咳少痰,咽喉不利,以及吐血、咯血等。又可养胃阴、生津润肠,以治热病伤津、咽 According to traditional Chinese medicine, reed rhizome and Ophiopogon japonicus have the function of clearing heat and moistening. Lugan sweet, cold, into the lungs, stomach. Good nourishing yin and lungs, can be excreted on the pus, heat and heat rash, can clear the stomach heat, thirst, under the thermal conductivity of urine can be down. The Ophiopogon sweet, slightly cold, into the heart, lungs, stomach. Can Yin and lungs, phlegm and cough. For the treatment of yin deficiency and dryness, dry cough, sputum, unfavorable throat, and vomiting blood, hemoptysis and so on. It can nourish stomach yin, regulate fluids and intestines, and treat fever, sore throat and pharynx.