After the new crown vaccine can eat potato chips, but pay attention to avoid eating seafood, spicy and other flavors of potato chips. After the New Crown vaccine, you need to pay attention to a light diet and avoid hairy and allergic foods, but common snacks can be eaten, including potato chips, cookies, bread, ice cream, egg tarts, etc. Since the body’s immune system starts to produce immunity after the New Crown vaccine, at the same time foreign substances enter the body and can cause adverse reactions, called adverse vaccine reactions. Avoid spicy and stimulating foods before and after vaccination, and do not eat foods that you are usually allergic to before and after vaccination. Irritating foods such as onion, ginger, garlic, chili pepper, mustard, alcohol, and the intake of too many spicy tasting potato chips are not conducive to wound healing, and they also tend to stimulate local redness and itching at the vaccination site. Also, foods such as lamb, milk, eggs, and seafood contain substances that increase the permeability of blood vessels, causing microvascular dilation and congestion, which are also detrimental to the healing of blood vessels and wounds. The above-mentioned foods are recommended to be avoided for a short period of time after the new crown vaccination. In addition, it is recommended to eat some vegetables and fruits rich in vitamin C, such as oranges, grapes, kiwi, tomatoes, carrots, spinach, etc., to maintain a balanced nutrition. Besides paying attention to the diet, you should also pay attention to the local cleanliness and hygiene of the vaccination site, and avoid bathing for 24 hours after vaccination to avoid infection caused by contact with water.