I took her to the pedi this afternoon, actually, because she now has a different rash in the crack of her left elbow (below where she got the shot). She doesn't have the welt or anything anymore but I did bring it up and the pedi seemed really nonplussed about it (he is very chill). He didn't seem to think it was weird and he didn't seem to think I should be concerned that she is full of "super pox." She has really sensitive skin and tends to welt up with a lot of things (like mosquito bites).

He did say he thought this new rash was bacterial and gave me an antibiotic ointment. We'll see.