I went back to the place I got the vaccination--the N/P said she'd never seen a reaction like this, also, so said it looked 'angry'. However, after making several phone calls and talking with the pharmacist there, she said it was a localized reaction, seen in several people and it takes about 10 days to go away. It may spread even more, and to take Ibuprophen, Benydryl and used warm compresses on it--or cool, if that felt better.
I've done all three today and it is spreading and very tender to the touch. I'll be very careful to wash my hands. Thanks for the input.