My daughter recently had a skin infection. It wasn’t life threatening, but, by the time we got it diagnosed and began treatment, it had spread over several of her extremities. And we could have caught it sooner. We noticed the first manifestations of the infection a full week before we began treatment. Problem was, we didn’t know what we were looking at it. We thought it was just a wound that a waterproof Band-Aid had made look a little worse. Our mistaken judgment let the infection spread far more than it would have if we had started treating it right away.