注射疫苗有症状之后，可以服用止痛药。只是不建议之前服用。参见CDC官网 COVID-19 vaccination will help protect you from getting COVID-19. Learn about the potential side effects of the COVID-19 vaccine. Full Story: https://www.cdc.gov/coronavirus/2019-ncov/vaccines/expect/after.html -geekcode(文心雕码) 2021-4-26
