Have Cat Questions? Ask a Cat Vet Online.
Sometimes dandruff occurs when an animal isn't getting enough fat in their diet. Fish oil supplements help to improve metabolism of fats in skin tissue and usually clears up dandruff.
Dandruff is also common in diabetic cats. Cat Dandruff and Diet.
Also, due to mites - see Getting fleas, ear mites and walking dandruff off your cat-WCVB-TV Pet Center.; PetPlace.com - Article: Cheyletiellosis (Walking Dandruff Mite)
Regardless, you need to watch out for scabs, sores, or if your cat appears lethargic, as this will require medical attention. However, it would be best to schedule an appointment with your vet for a proper diagnosis. I would hold off bathing until you consult with your vet.
I am hoping and praying all checks out well - thus, as far a bathing your cat, since she has never had such an experience...make sure the door is closed in the bathroom - as cats are a little feisty...and your cat might jump out of the tub and run around all wet and catch a cold - but, here's a "how to" that might help:
How to Give a Cat a Bath - eHow.com
My very best to you and your cat,
Peace, Love & Happiness,
The Mystic Wave
What can be done about cat dandruff and what are the causes?
You're very welcome - I do hope that the Lipiderm will help your cat (a little taste for your dog, perhaps)- I am concerned for your cat. I do suggest that you schedule an appt. with a vet soon, if at all possible - to rule out anything serious.
Please take care.
My very best to you and your cat.