The efficacy of loquat can treat cough due to lung dryness. Pei Pa Koa, the fruit of loquat, family Rosaceae, is sweet and sour in flavor, cool in nature, and belongs to the lung and spleen meridians, its effect is to moisten the lung, lower the qi, and stop coughing, and it is mainly used for treating cough due to lung dryness, lung impotence (clinically characterized by dry cough, shortness of breath, coughing and vomiting of turbid saliva and salivary froth, wheezing, aggravated by activity, and recurring as the main symptom), coughing, retching and wheezing, irritable and feverish (irritable and stifling heat), thirst, gastric fever, vomiting, and epistaxis, among other conditions. Loquat leaves are decocted for internal use. If you need to use loquat leaves to treat cough, honey-roasted will be more effective in relieving cough. The adverse reactions and contraindications of loquat leaves are not clear, however, loquat should not be consumed in excess. It should be noted that if patients need to use loquat to treat cough, it is recommended to use it under the guidance of a doctor.