
The best way to treat this is to put your puppy on a raw food diet (Barf) "google" it and you will find loads of info.
I have bichons which also suffer with itching and they are all on raw and don't itch anymore.The pups are weaned onto it
and I encourage their new owners to continue with it.
These vets special diets will cost you a fortune, a good natural diet will be much more cost effective and better
for your puppy.
Licking her feet is a sign of itching, it's something they do when they itch, it doesn't mean they have pain in their feet.
Her dandruff will probably improve when her diet improves.
Good luck with her.
Liz