Has anyone taken their dog for this procedure?

The Vet told me if you see your pet dragging their but along the floor or carpet , this might be the reason. The Vet said it is different for everybody, some may need this procedure done 1-2 times a year, some need it done every other month, it just all depends on the animal.

It is painfull to my Chica. The Vets finger has to go into her little anul and clear out the anul sac if it has fecal deposits in it that couldn't be defecated. Everyone please tell me your experience with this.
Chica's mom