My barnevelder hen has some redness on th shanks of both legs and seems like some of the scales on herlegs are slightly lifted. Is this the erly symptoms of scaly leg? If so, how should I treat it? Do I need to treat all my chicken even if they show no symptoms? I have PYthon dust as well as Pyrethrin spray I can use, but I heard it can be treated with olive oil. Advice would be helpful. I will try to take a photo and post ASAP.