Strenuous exercise is not recommended after the New Crown vaccination, as discomfort such as dizziness, headache, weakness and nausea may occur after vaccination. Strenuous exercise is not recommended because it may aggravate the discomfort after strenuous activity. If you accidentally catch a cold in the wind after strenuous exercise, it may easily cause a cold and lead to changes in the immune function of the body, which may affect the protective effect of the vaccine. In addition, after strenuous exercise, there will be more sweat, which will easily contaminate the vaccination site and lead to infection. After sweating more, sweat and metabolic substances will accumulate on the surface of the skin and cause significant discomfort, and the smell of sweat will be present, leading to a strong desire to take a shower. If you take a shower, it is also easy to get water on the inoculation site, which can lead to infection. If patients want to exercise, they can choose more gentle and relaxing forms of exercise, such as slow walking, jogging, yoga, etc., to avoid making themselves excrete more sweat. However, swimming should be avoided, as there are more bacteria in the water of the pool, which can easily lead to infection at the vaccination site. You need to observe the vaccination for 30 minutes after it is completed before leaving to avoid serious allergic reactions after vaccination. After vaccination, you should also avoid spicy and irritating foods, such as chili, garlic, mustard, etc., as well as foods that can easily cause allergies, such as beef, mutton, seafood, eggs, etc., which may irritate the skin at the vaccination site and cause adverse reactions. Prohibit drinking alcohol to avoid alcohol from affecting the effect of the vaccine. Keep the right amount of rest, avoid excessive staying up late, and keep the vaccination site dry and hygienic.