A little cough what to eat fast need to be combined with the cause of the selection of suitable drugs, common causes can be caused by upper respiratory tract infection, lung infection, cough variant asthma and so on. 1. Upper respiratory tract infections: generally induced by cold, excessive fatigue and rain and other factors, cough symptoms, treatment can be used under the guidance of the physician dextromethorphan, loquat lozenges and other cough, if the cough is difficult to alleviate the cough can be taken to codeine and other cough suppressants. 2. Lung infections: pneumonia, tuberculosis, acute and chronic bronchitis and other diseases can cause cough symptoms, need to be combined with specific pathogens to give targeted treatment, can be assisted by dextromethorphan and other symptomatic cough. 3. Cough variant asthma: a special type of bronchial asthma, with cough as the only or first symptom, need to give budesonide, salbutamol and other inhalation or oral cotrimoxazole capsules cough treatment. Cough symptoms caused by a number of reasons, different causes are different drugs, it is recommended that the symptoms of the person in a timely manner to seek medical attention, the above drugs need to be standardized under the guidance of a professional physician and pharmacist, the rational application.