Contact your health care provider immediately.  Your provider should notify the Vaccine Adverse Event Reporting System (VAERS) of your reaction. You may also file a report yourself. All serious reactions should be reported, even if you aren’t sure it was caused by the flu vaccine. This data is used to assist VAERS in identifying serious reactions that may need further investigation.   Additionally, if your reaction results in a serious injury, you might qualify for compensation from the Vaccine Injury Compensation Program (VICP).  Compensation for vaccine-related injury or death claims for covered vaccines given on or after October 1, 1988 is provided for by VICP.