P.B.
There is a product called "Tinkle Tonic" that may help her.
My mom is a breeder & raises her dogs holistically - has had great results with this product. Here is a link & excerpt:
http://shop.robbinspetcare.com/tinkle-tonic-1-oz.html?dog...
"Tinkle Tonic is intended to soothe, lubricate, strengthen and protect urinary tract tissues of dogs and cats."
If there is no other medical reason for her behavior, has there been recent changes or stresses in the house that she could be responding to?
Good Luck, hope this is helpful.
P : )