Hi, all! I live in Arkansas and for three of our four seasons, we have bad external parasites. This year, my chicken seem to really be struggling with mites and gnats. We also have horrible mosquitoes, which seem interested in my hens but don't seem to ever get through their feathers to bite them. In the past, I have dusted them myself with Sevin Dust when I've noticed feather loss, but my chickens seem puny need for a few days after and I really hate to use it. They have access to dust bathing areas, and I give them wood ash to flop around in. They still really seem to be struggling, though. Have any of you ever used topical treatments for external parasites? I have K9 Advantix and K9 Advantage already, for my dogs and cats, so I could use that. I could also easily get Frontline or something else. Mainly, I am looking for something that is convenient for me and safe for my birds. Thanks in advance for any suggestions you have!