Usually, dizziness after vaccination is a normal reaction, and none of the vaccines currently in clinical use can be guaranteed to be free of side effects after vaccination. Commonly, such as New Crown vaccine, rabies vaccine, HPV cervical vaccine, hepatitis B vaccine, etc., may cause dizziness, headache and other uncomfortable reactions after vaccination. In addition, a few vaccinees may also experience redness, swelling and pain at the vaccination site, as well as general discomfort such as malaise, mild fever, nausea, vomiting and diarrhea. For those who experience these uncomfortable symptoms, they can be relieved by proper rest and sleep, or by applying local heat. It is not recommended to take medications to relieve symptoms to prevent medications from interfering with the effectiveness of the vaccine. Usually, the above symptoms can disappear on their own in 2-3 days. If the symptoms of dizziness worsen in a short period of time or have not been relieved for a long time, it is necessary to go to the hospital in time to avoid delaying the treatment of dizziness caused by other diseases. 2-3 days after vaccination, the following matters should be noted in daily life: 1. Eat a light diet: avoid spicy, cold and indigestible foods such as ice-cream and hot pot to prevent stimulation of the gastrointestinal tract and aggravate the discomfort; 2. Exertion: when headache and dizziness symptoms appear, regular rest and rest should be taken and staying up late should be avoided. It is recommended to suspend heavy physical labor or highly stressful work, such as driving and working at height, in order to avoid dizziness and headache affecting the work process and thus accidents.