Yes, I agree that the increment of fibre in her food could be helpful. Anal Sac could also cause cancer so you would have to be quick to sort out this issue. However, she is not suffering because of any inflammation or itching then you should keep her away to bit her booty. In this regard, why didn’t you try a cone? I think cones are right to keep dogs to avoid licking and biting. If you are against cones then just try these alternates of cones https://ourfitpets.com/health/8-best-alternatives-cone-shame/
