It is generally recommended to shower after 2 to 3 days after the Septavalent vaccination. The Septavalent vaccine generally refers to the nine-valent HPV (human papillomavirus) vaccine, which can be used to prevent cervical cancer caused by HPV infection. It is usually suitable for people aged 16~26 to receive the vaccination. After vaccination, symptoms such as pain, redness and swelling at the injection site may occur, and some people may also experience fever, dizziness, headache, nausea, muscle and joint pain, and fainting. Therefore, it is usually necessary to observe the vaccine in the hospital for 30 minutes after injection to avoid serious adverse reactions. It is not recommended to take a shower just after receiving the nine-valent vaccine, which may cause infection at the injection site, and it is usually recommended to take a shower after 2 to 3 days to reduce the chance of infection.