“Chickenpox vaccination” should refer to chickenpox vaccination, there is generally no adverse reaction after chickenpox vaccination, a small number of people may have a transient transient fever or mild rash, and some of them may have more serious adverse reactions, which need timely treatment. Fever, rash and other minor adverse reactions can generally subside on their own without treatment, if it lasts for more than three days does not subside or even continue to worsen, you need to go to the regular hospital by a professional doctor for treatment. In a few cases, serious adverse reactions such as thrombocytopenic purpura, febrile convulsions and fainting may occur, which require immediate medical attention. After chickenpox vaccination, you need to be observed in the hospital for half an hour, no adverse reactions before you can leave, and then go home and observe whether there are any adverse reactions.