Hello! I noticed some of my hens feathers and hair on their heads not looking right. It started with some of my silkies, and now I am noticing it on some of my other breeds of chickens. So, I bought premo poultry spray for mites assuming mites is the issue. For anyone who has used this before, did you spray the chickens directly as well as the coop, just the chickens, or just the coop, & how many times a week did you treat for the mites, and how long should I do the treatment for? Any advice is appreciated! Thank you in advance!