After the chickenpox vaccine, children should pay attention to the protection of the vaccination site, proper rest, light diet, and observation of adverse reactions, as follows: 1) protection of the vaccination site: avoid infection of the vaccination site, and do not take a bath on the same day; 2) proper rest: proper rest helps to recover and avoid a decrease in resistance due to fatigue; 3) light diet: after the chickenpox vaccine, eating meat food or spicy, stimulating food can cause gastrointestinal discomfort; 4) observation of adverse reactions: observe whether there are symptoms such as nasal congestion, fever, etc. If you eat too much spicy and stimulating food, it will cause gastrointestinal discomfort and even accumulation of food; 4. Generally, after the chickenpox vaccine, the adverse reactions are relatively mild.