I highly recommend that you soak those legs in a container of warm epsom salts water for about 20 minutes to loosen scales, loosen debris and mite feces between the scales. Then take a soft toothbrush and gently scrub between the scales as best as you can to remove debris and mite feces. Then apply your scaly leg mite spray or use another oil based product until healed. You'll probably have to do this at least once a week until healed. This is going to take time.