It must be so uncomfortable for Ki to be itching so much. There can be many reasons for the itch....allergies to a flea bite, food, environment, over- vaccination, etc.etc......Some people have some luck with omega 3 oils but it does take 3-6 weeks to see if it's working.....it has to be a good one like this one, or it will not be beneficial.....
Ark Naturals Royal Coat Express for Dogs & Cats,...
All I could find that I had in my bookmarks was these two links concerning itching.....I don't know if there is anything useful in them........
Natural Itch Relief for Dogs | Remedies for Itchy Dog Skin Pet allergies and hotspots - natural flea prevention and treatments
These two books could have some helpful advise.....
Amazon.com: The Allergy Solution for Dogs: Natural and Conventional Therapies to Ease Discomfort and Enhance Your Dog's Quality of Life (The Natural Vet) (0086874526723): Shawn Messonnier: Books
Amazon.com: The Nature of Animal Healing : The...
Anything she tries, whether its omega 3's or diet is going to take time, hang in there, I hope she's better soon......and good luck.....