Get a leash made out of chain so biting it won't do anything. When you're outside and the dog tries to bite shorten up the leash and hold it away from you so it can't reach you. Don't move or walk until she stops biting and pulling, be a tree. And when she stops doing it then praise and continue your walk.
Soon the dog will equate no walking with biting.
Soon the dog will equate no walking with biting.
