When we got our chickens they came infested with mites and one with lice. I did 3 treatments of poultry dust on all birds and deep cleaned the coop. Mites are gone but my one gal with the lice is infested still. No one else seems to have them. It was suggested on my FB group to use Adams flea dip but no stores in my area carry flea dip and this is probably the last week of hot weather here so my time is limited to order it online. Would the spray be as effective? Can I cut the feathers that have eggs off? What is your true and proven way to rid lice? This poor bird has no neck feathers and looks raggid, she needs relief like yesterday. Please help.