1) Inactivated influenza vaccine is very safe, except for the pain, redness and swelling at the vaccination site, and generally no other side effects.
2) If you feel unwell before the scheduled vaccination, it is recommended to arrange the vaccination one week after the recovery.
3) After the vaccination, some people may have symptoms such as fever, muscle pain, and fatigue within 6 to 12 hours after vaccination. These symptoms usually disappear within two days. If you have a fever or discomfort, consult your doctor. If there is a severe allergic reaction such as rare rubella mass, swelling of the tongue and dyspnea, or serious adverse conditions, such as hand and foot paralysis and weakness, the patient must seek medical treatment immediately.
4) After the vaccine injection, you can take a bath as usual.