It is generally not recommended to eat spicy food after vaccination, spicy food is spicy and stimulating and relatively greasy food. After the vaccine need to produce an immune response in the body, and thus produce a certain amount of antibodies, so as to play a role in preventing disease, if you eat spicy food at this time, may induce or aggravate the adverse reaction. On the one hand, because the spicy and stimulating food, can accelerate blood circulation, dilate blood vessels, increase the permeability of blood vessels, so that the vascular exudate increased, easy to stimulate the injection site of redness, swelling, hardness, pain, itching and other symptoms. On the other hand, spicy and stimulating food is easy to increase gastrointestinal motility, gastrointestinal mucosa irritation, gastrointestinal function is poor people are prone to gastrointestinal adverse reactions, such as nausea, vomiting, abdominal pain, diarrhea, etc.; and the vaccine itself is prone to the above similar adverse reactions, which is easy to confuse with the vaccine-induced adverse reactions. Therefore, try to avoid spicy and irritating foods such as chili fries after vaccination. In addition, it is recommended that after vaccination, it is best to take a light diet, avoiding tobacco and alcohol, avoiding oily diet and seafood, and reducing the consumption of onions, ginger, garlic, etc., so as not to cause allergic reactions. At the same time, pay attention to more rest, less late at night, try to avoid drinking strong tea, coffee and other excitatory drinks.