If you eat spicy food after vaccination, you need to pay attention to see if there are any adverse reactions, and if you already have adverse reactions after vaccination, you need to pay attention to see if the adverse reactions get worse. In general, if there is no adverse reaction after vaccination, itching, slight pain or redness, swelling or hard nodules at the injection site may occur after eating spicy food. Generally, no special treatment is needed, and the above symptoms will be gradually relieved if you do not continue to eat spicy food. However, if you continue to eat spicy food, the above symptoms will worsen and the recovery time will be prolonged. If local adverse reactions occur after vaccination, the local adverse reactions will be aggravated after eating spicy food, and local oozing and itching may occur in serious cases. If scratching with hands, bacterial infection can be secondary, and in serious cases, local abscess can be caused. At this time, it is necessary to go to the hospital in a timely manner, and it is necessary to apply antibacterial medication as prescribed by the doctor, and if there is pus flow, abscess incision and drainage are also required. In addition, spicy and irritating foods, which promote gastrointestinal motility, can cause abdominal pain and diarrhea when consumed excessively. The above-mentioned gastrointestinal symptoms may also occur after vaccination, which may easily lead to aggravation of gastrointestinal symptoms. In this case, it is necessary to pay attention to a light diet, drink warm water and avoid cold and greasy food. If the above-mentioned symptoms or other adverse reactions gradually worsen or persist without relief, prompt medical consultation is required.