[Tiva]

That is a pretty serious case of Swimmers. I would really start as soon as possible and tape even if she manages to get it off. Med Tape has some degree of water resistance and is commonly used so while it will get dirty faster outside you will just do better to replace it more frequently. The sooner you start to faster the ligaments will align properly and the better off she will be.
I had similar issues on a smaller scale as a kid an started wearing booties at only three months old to twist my feet back to front position.

I totally Vote for Iberia being her name (Iberian Lynx)