If you're anal about your chickens, as many of us are, you can hasten healing by spraying Vetericyn on the legs twice a day. It promotes tissue healing and regrowth.
Yes, Elector works splendidly on leg mites, and it just takes one 10 minute soaking. No mess as with Vaseline and castor oil. Elector get the mite eggs, too. No egg withdrawal period, either.