Ms Jackson said the owner, a girl in her 20s, and the dog "just ran off" after the attack.
She said: "I'm a massive dog lover and I know how to approach a dog - but it just went. I pulled away or it could have been a lot worse.
"I had to see a plastic surgeon as it went straight through to the inside of my nose."
Ms Jackson said she thought the dog was a "pit bull-type"....but clearly not one that has any common sense.