One of my cats scratches a little more than I think would be normal. I inspect him for fleas, but find nothing. Do cats get dry skin the same as humans? Maybe that's what the scratching.
Yes, cats can have dry skin. Dry skin, allergies, fleas, mange etc.. are all possible causes of "itching". Why your pet is "itching" I do not know. I usually recommend Pet F.A.Liquid for cats with dry skin. vetcare