Baby wants to vomit and can not vomit, the following common situations: 1, throat irritation caused by the presence of respiratory tract infection or chronic pharyngitis, etc., because the pharynx is congested easily by the smell of stimulation and hyperventilation caused by pharyngeal discomfort, resulting in nausea and can not vomit phenomenon, the examination can be seen in the pharynx is congested, if necessary, you can give oral pediatric six pills or interferon spray, local spray mouth and nose treatment observation. 2. Gastrointestinal dyspepsia, the baby will be accompanied by nausea, intermittent vomiting, loss of appetite, abdominal pain or thin stools and other symptoms, after giving digestive and anti-infective treatment will improve, you can take oral amoxicillin capsules, Clostridium Typhimurium live bacteria, etc., pay attention to observation, if necessary, go to the hospital for medical consultation.