A. It is possible your cat has a wound or even skin infection that is causing the hair loss and redness you are seeing. Preventing him from continuing to lick is best as this can introduce more bacteria into the area and make problems worse. An Elizabethan collar can be used to prevent access to the legs. It is also best to have your vet take a look at the area, and they may wish to take a sample if the cause isn't readily apparent. Your vet can then provide you with a pet safe topical or oral antibiotic. Do not place over the counter antibiotic salves on the area as it can be toxic if licked and ingested by pets.
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