If you have taken a shower after vaccination, you need to keep observing the vaccination site, disinfect the site with iodine povidone, and do not need to treat it if there is no discomfort, but if there is pain or pus, then you need to consult a doctor. If you take a shower after vaccination, you need to keep observing the vaccination site. If there are no obvious changes at the vaccination site, and no accompanying symptoms such as pain or itching, then generally no infection has occurred. No treatment is needed at this time, and it is sufficient to pay attention to sterilizing the needle hole. However, if there is pain, pus, fluctuating sensation and other signs of pinhole infection, it is necessary to consult a doctor in time. Blood routine, local secretion culture and other tests, clear specific causative bacteria, under the guidance of the doctor to take incision and drainage, piperacillin tazobactam and other antimicrobial drugs for treatment.