Charlotte had her kindergarten shots last week and then got cellulitis. It manifested as a large, swollen, red splotch on her arm, where she'd gotten her shot. We went back to the doctor and got an antibiotic. The best thing, though, was when the doctor asked me, "Do you mind if I draw on her?"
"For fun or is there a purpose?"
"Not for fun -- I want to outline the area so we can tell if it's receding or spreading more easily."
So, Cha got a "tattoo". She's very proud of it. The cellulitis began to recede by the next morning. Don't worry -- she'll be finishing all of her course of antibiotics. One of my brothers contracted an antibiotic-resistant staph infection which required surgery and months of care.
We're not making any superbugs in this house, if we can help it.