The gnats are crawling in their feathers and seem to be driving them crazy. I'm processing in the next two weeks, but in the mean time is there anything I can do for them? I have some DE, but it's not the food grade stuff, would that at least be better to use than Sevin or something (I ideally don't want to use any chemicals). I also have some insect spray made from cottonseed oil that I could spray around their pen that shouldn't hurt the chickens... anyone have any other suggestions or guidance?