My Godson when he had his MMR injections as a baby had the strangest reaction, his whole leg in which he had had the injection went blue.
It went completely blue and he screamed and screamed in pain.
It subsided over about a 24 hour period.
We couldnt pick him up or any thing because he would sceam in pain.
When he had his booster, it was done in hospital and the very same thing happened but to a lesser degree.
Ever heard of this?