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How to stop a cat from pulling its hair out
Understand pet allergies.
If humans have an allergy, say for instance hay fever, we tend to get sore eyes, a runny nose, and sneeze. Cats, however, react differently.
The commonest manifestation of an allergy in cats is itchy skin, which in turns results in excessive grooming and pulling hair out. In much the same way that some people have a peanut allergy, or a seafood allergy, or get hay fever, a cat may be allergic to one substance and be fine with another.