I got my flu shot 2 weeks ago and I wasn't worried about spread, but my RSD is in my arms, and I unfortunately had to get it in my worse arm and it caused a HUGE flair up! I was in so much pain! So I would either recommend getting the nasal spray flu vaccination (however that one IS a LIVE virus) or see if the Dr can give it in an area not affected. I rather get the flu vaccine verses getting the actual flu because I know I will be 10x sick because my body just cant handle very much anymore.