need advise

hello, my cat is about 8 years old and i have been noticing that she cleans her self every minute she has and i know this is not normal because i had many cats in my life and nor i never seen one clean their self so much like this cat does. She has got to the point of when she cleans herself she actually bites into her skin and she has scabs all over her poor body please someone tell me what i should do and or what i should give her thank you very much
Nicole :)

This sounds like a stress or anxiety disorder to me. Have there been any changes in her daily routine or in your household in the past few months?

There could also be some skin disorder or parasitic infection.I'd have her checked out by a vet.

ANy change in diet??? Food allergy??

I agree with all of the above responses.