You can eat barbecue after the vaccination, but it is generally not recommended. Eating barbecue can easily cause gastrointestinal discomfort, and it is difficult to distinguish between adverse reactions to the vaccine and discomfort caused by eating barbecue because the body is usually weak after the vaccination and may have some adverse reactions. Since barbecue is a spicy and irritating food, it may cause some stimulation to the gastrointestinal tract after eating, which may easily lead to indigestion, nausea, vomiting, abdominal pain, diarrhea and other symptoms. If there are problems such as substandard food hygiene or poor sanitation, eating it may also cause bacterial infections, which can easily lead to gastritis, enteritis and other gastrointestinal diseases. Some people are also prone to nausea, vomiting, diarrhea and other adverse reactions after the New Crown vaccine, and there is some overlap with the irritation symptoms caused by eating barbecue, so it is not easy to distinguish whether it is caused by eating barbecue or the New Crown vaccine, which can easily lead to misjudgment. In addition, if a patient has gastrointestinal discomfort such as abdominal pain or diarrhea, or has a gastrointestinal disease, it is not recommended to eat barbecue, regardless of whether or not the vaccine has been administered, in order to avoid aggravating the symptoms or condition. After the New Crown vaccination, vaccinees are advised to pay attention to their diet, avoid smoking and alcohol, avoid spicy and irritating foods such as chili, onion, raw garlic and pepper, etc. They should also take proper rest and avoid strenuous exercise. Avoid getting water on the injection site for 1 day after vaccination, and keep the injection area dry and hygienic to avoid infection.