Allergic cough to take lung Ning granules is generally ineffective, it is recommended to follow the doctor’s instructions for medication. Allergic cough is mainly manifested as prolonged paroxysmal, irritating dry cough, which may be accompanied by foreign body sensation or itching in the throat. Lung Ning Granules, composed of extracts of Rehmannia glutinosa. It has the efficacy of clearing heat and expectorant, suppressing cough and calming asthma. It is used for intrapulmonary infections, chronic bronchitis, asthmatic bronchitis, acute respiratory tract infections. Diabetic patients are forbidden to take Lung Ning Granules. Avoid smoking, alcohol and spicy, fragrant and dry (aromatic and dry), cold and greasy food during taking. It is not suitable to take tonic Chinese medicine at the same time during the period of taking the medicine. If there is any discomfort, it is recommended to consult a doctor. If medication is needed, it should be identified by a doctor and standardized treatment should be followed.