I have a cat w/allergies and, unfortunately, we have yet to determine what she's allergic to. None of my other cats have this problem so it isn't unusual for one to have allergies and the others not. She lost a lot of hair w/the constant licking but now she's on Prednisolone and the hair loss has stopped as well as the itching.

Take your cat to the vet now because if she does have an allergy, the itching can be maddening for her. My vet said it's like having poison ivy. Don't put your cat through that.