This medication can be taken as prescribed by your doctor if indicated for a three year old child. Chuanbei Lung Clearing Syrup is effective in clearing lung and moistening dryness, relieving cough and resolving phlegm. It is composed of loquat leaves, bitter almonds, Sichuan shellfish, maitake, and dihuang. It can be used for the treatment of cough caused by exogenous wind-heat, the lungs are not declared due to coughing, cough, sputum is small and sticky, yellow color, difficult to cluck, dry mouth and tongue, sore throat, tongue edge red, thin yellow moss, floating pulse, and so on. It should be noted that, taking this medicine, avoid smoking, alcohol and spicy, cold food; phlegm-damp cough should not be served, which is manifested as coughing phlegm, phlegm viscous or thick lumps, accompanied by food fatigue, less food abdominal distension, loose stools; bronchodilatation, pulmonary abscess, pulmonary heart disease, diabetes mellitus, should be taken under the guidance of a physician. Take 3 days, the symptoms do not improve, should stop taking, and go to the hospital. Need to use the drug under the guidance of a professional pharmacist or physician.