If your dog's itching persists or you notice any of the following signs, you should make an appointment to visit your veterinarian to find out if the itching is caused by a medical condition:
Frequent scratching, licking, biting, or chewing
Excessive rolling, rubbing, or scooting
Recurrent ear problems (head shaking, ear discharge/odor, or scratching at ears)
Hair loss, body odor, or skin changes (such as rash, redness, greasy skin, or scabs)