Give the dog a bath with scratchex flea soap.Follow directions.If the dog has fleas,,use Hartz flea spray from the neck to the tip of the tail.Everywhere but the head.For hot spots(where the fur is worn from scratching),,use releif dog spray.Do not use sprays around pet birds.Wash bedding & home with bleach.Vaccuum alot.If the dog doesnt have fleas,,it may be a skin condition.Consult vet.