Lily has the effect of nourishing yin and moisturizing the lungs, and can be used in the treatment of yin deficiency and dry cough and other conditions. The drug is taken as a decoction of soup for internal use. Lily is the dried fleshy scaly leaves of the lily plant, lily of the valley, lily of the valley, or lily of the valley. The drug is sweet and cold in nature, and belongs to the heart and lung meridian, with the effect of nourishing yin and moistening the lung, clearing the heart and tranquilizing the mind, and can be clinically used for the treatment of yin deficiency and dry cough, labor cough and hemoptysis, deficiency annoyance (annoyance caused by deficiency heat in the body) palpitations, insomnia and dreamy, trance, and other medical conditions. In the use of wind-cold cough and cold loose stools (feces thin not shaped) should be avoided. Cough patients are recommended to go to a regular hospital, under the guidance of a professional physician to identify the evidence of the treatment, not to take medication on their own, so as not to delay the condition.