Yet another odd childhood ailment we've recently discovered! It's called Fifth Disease for some reason, and is a human version of the Parvo virus. Luckily, it's not serious, but these later (post-contagious) stages involve a sad looking rash. Which, yes, is called "slapped check rash" because it mostly makes the cheeks red and blotchy, with more "lacey" rash on arms and legs.
And no, we didn't slap her cheeks! Luckily, she seems to be feeling ok, and nobody else in the Ward household is affected. Yet.