Patients who feel dizzy and vomiting the day after drinking alcohol are mainly considered to be related to the stimulation of cerebral blood vessels, cerebral nerves and gastrointestinal tract after drinking alcohol. After drinking alcohol, alcohol will cause the patient’s cerebral blood vessels to dilate, which will easily cause the patient’s blood pressure to rise, resulting in dizziness and vomiting. There is also a stimulation of the liver and digestive tract after drinking alcohol, and it is also easy to have discomfort in the gastrointestinal tract, which is manifested by the symptoms of wanting to vomit. It is recommended that patients drink alcohol in moderation, and the next day they must have a blood pressure check, and if their blood pressure is high, they should be given symptomatic antihypertensive treatment. If their dizziness is heavy, accompanied by unstable walking and ataxia, they should also consider cerebrovascular accidents, such as cerebral hemorrhage caused by elevated blood pressure when they drink a lot of alcohol, and they need to be treated in a timely manner.