Poor Misty.... I bet she had a lot of fun, though! If her pads are actually cracked, I would recommend putting a little Neosporin (triple antibiotic ointment) on the cuts. I've had a little experience with this because when we take Chloe to the river, she will run around until her pads start to bleed. She loves the water so much, but I have had to start bringing her home early because she has so much fun swimming and running that she won't stop until it's too late. And then when we get home she licks her little feeties and makes them worse. I put Vick's vapor rub around (not touching, just surrounding) the affected area so she doesn't lick at herself. If I can convince her to not lick the affected area, she's usually ok the next day and completely recovered the day after that.

Good luck with Misty's tootsies...