When your dog pumps its leg frantically to scratch its ear, or your cat bites its tail furiously until the fur falls out, it is clear that your pet is itching for relief. Occasional scratching is normal, but if a pet scratches or bites itself relentlessly, a health problem may be the cause. Itching can be triggered by a variety of conditions, ranging from liver disease to lice, from fungus to fle..
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