Children have been vaccinated, you can eat cold things in moderation, but make sure the food is clean. Children have had a preventive injection, most do not affect the normal diet, as long as the usual food often eat, there is no allergic conditions, you can eat some cold things in moderation, pay attention to food cleanliness and hygiene. Try not to eat allergenic food, stimulating food, to avoid allergies or physical discomfort, to cover up the adverse reaction of the vaccine. In addition, for oral dosage forms of vaccination, such as polio sugar pill, try not to eat before and after vaccination to avoid affecting the effect of the vaccine. Specific dietary conditions, you can consult the vaccinated doctor in detail at the time of vaccination, and consult the doctor promptly if there are any uncomfortable symptoms after vaccination.