I was right. It was an infection. It was even more swollen by the time we got there. They gave her a shot in each hip. It really hurt. They also prescribed an antibiotic. They drew a line with a pen at the edge of the redness. If it gets much past the line, they are putting her into the hospital. So far so good. It's a tiny bit bigger, but not by much and that was over 5 hours ago. I think we may be on the mend. She thinks she may be feeling a little better, too. What a day! I'll keep you informed.