咳嗽是一种常见的症状,由于引起咳嗽的原因很多,尽管适当用药止咳很有必要,但药不对症,反受其害。如咳嗽由炎症或过敏反应引起,那么咳嗽仅仅是一种症状,首先需要消炎或抗过敏以治本;咳嗽有痰时需要化痰止咳,如只止咳不化痰,咳嗽虽被暂时止住,但痰液仍壅滞在呼吸道内,会导致咳嗽迁延不止。因此,要善于选用止咳化痰药。 Cough is a common symptom, because of the many causes of cough, although the appropriate medication cough is necessary, but the medicine is not symptomatic, against the harm. Such as cough caused by inflammation or allergic reactions, then the cough is only a symptom, first of all need anti-inflammatory or anti-allergy to cure; cough sputum when the need for phlegm and cough, such as only cough and phlegm, cough, although temporarily stopped, Sputum is still stagnant in the respiratory tract, will lead to more than cough delay. Therefore, we should be good at using cough and phlegm medicine.