Here is an article that may help: https://www.health.com/condition/flu/sirva

It describes how SIRVA can occur from a wrongly placed injection. My daughters are both nurses, and each spent a long time perfecting her injection technique to avoid causing this problem.

According to my PCP, the standard protocol for sustained (3+ months) of pain that does not respond to icing, analgesics and exercise is a steroid injection. The proper site for injection of a steroid must be determined by ultrasound or other imaging.

To avoid this issue in future injections, have you PCP or a skilled nurse show you how to "landmark" your correct injection sit, and pay attention whenever anyone is preparing to give you a shot. If they are not locating it correctly, STOP them and insist they check again.

Finally, SIRVA does not mean you are adversely reacting to the vaccine itself, so don't avoid it in future.

Sue