The main effects of Nourishing Yin and Clearing Lung Pill can nourish yin and moisturize dryness, clear the lung and benefit the pharynx, generally treating dry and sore throat caused by yin deficiency and dryness of the lung, dry cough with little phlegm, or blood in phlegm. Modern research has shown that the drug has the effect of suppressing cough, expectorant and anti-inflammatory, and can also be used to treat diphtheria, acute tonsillitis, acute pharyngitis and other diseases. In the formula, there are mainly raw dihuang, which can clear heat and cool blood, dissipate blood stasis and eliminate swelling, white peony can astringe yin and drain heat, shellac mainly plays the role of clearing heat and moistening the lungs, resolving phlegm and dispersing knots, and a small amount of peppermint can clear heat and benefit the pharynx, and raw licorice can clear heat and detoxify the pharynx, as well as harmonize the various medicines. But need to pay attention to phlegm sticky, phlegm and dampness congestion is more obvious patients to be prohibited, wind-cold cough patients should not be taken.