Anyway, when I got home I noticed her nibbling on her back foot. I looked at it figuring she had probably torn a paw pad from pulling on the cement. But it actually looked like the toenail on her outside toe had rubbed the inside of the toe next to it so it was all red and irritated. Very ouchy looking. It looks a bit better this morning but still looks ouchy. She's not limping, and she's not bothering it too much - just some licking/nibbling here and there. This hasn't happened before. Do you think it's because she was pulling so hard on her walk? How can I keep it from happening again? Her toenails are actually nice and short, especially after last night's walk, so it's not that. I don't think a bootie would help because it's the side of her toe, not the bottom. Thoughts?

I can't say that I have EVER witnessed her licking her paws, but sure enough she has that salmon colored stained fur, so I know she does.