The Chinese patent medicine preparation with very good therapeutic effect In clinical practice, Laiyang pear cough syrup is a Chinese patent medicine preparation with very good therapeutic effect. The composition of the medicine mainly includes Laiyang pear cream, ephedra extract, polygala extract, lily extract, north ginseng extract, platycodon grandiflorum extract, menthol, etc. These drugs can play the role of antitussive and expectorant when combined with each other. In clinical practice, Laiyang pear cough syrup is mainly used for the treatment of cough caused by colds and colds, and has a very good relieving effect on phlegm. There are some precautions during the application of Laiyang Pear Cough Syrup, for example, it is forbidden for people allergic to this product. However, people with allergic constitution should use this product with caution, and avoid spicy and greasy food during medication. If the symptoms do not improve or worsen after three days of medication, they should stop taking the drug and go to the hospital.