In infants with coughing and vomiting, the first step is to analyze the cause of the symptoms and to provide timely and targeted treatment. The main causes are respiratory diseases such as acute upper respiratory tract infections, bronchitis, bronchiectasis and pneumonia. The first step is to take the infant to the hospital for routine blood tests to clarify the cause, and usually medication and physical therapy can be administered. 1, drug treatment: 1, viral infection: blood routine suggests viral infection, in clinical practice is mainly to give infants oral cough and phlegm Chinese medicine, such as pulmonary cough, easy Tanjing. In addition, according to the different pathogens to choose sensitive drugs for treatment; 2, bacterial infection: if there is no history of drug allergy, you can choose penicillin or cephalosporin drugs. At the same time, infants can be given oral phlegmolytics or with nebulized inhalation to relieve cough symptoms. If there is a history of drug allergy, you can choose macrolides, such as azithromycin, roxithromycin, erythromycin; 3. Allergy: When infants have allergy, they can also have symptoms such as coughing and vomiting, and can also be accompanied by diarrhea and rash, etc. They should seek prompt medical attention to clarify the allergen, and can take loratadine under the guidance of a doctor, while avoiding contact with allergic substances as much as possible in their lives. Second, physical therapy: Some infants coughing and vomiting may be due to parents not being able to watch their infants in time, some kind of foreign body accidentally choked by the baby to the throat or trachea. If the foreign body is in the throat, a laryngoscope can be used to remove it. If it has entered the baby’s bronchus or lungs, a bronchoscope is needed to remove the foreign body. In addition, excessive crying that causes throat discomfort can also cause coughing and vomiting, which should be relieved in the infant. Therefore, when coughing and vomiting occur in infants, the cause should be identified and appropriate measures should be taken. In case of severe symptoms, the baby should seek medical attention and be treated under the guidance of a doctor.