My 1.5 yr old hen has been breathing hard, mouth open, weezing with whole body. She is the only one (of 4 hens) that is having this problem. There is no discharge or clogged nares. I suspect it is from me spilling the diatomaceous earth. That stuff comes out of the bag in globs. It has also been hot and me air not great. Anyway, is there anything I can do to help her breathing? It sounds and looks like an asthma attack. I don't think it is an infection but since it hasn't resolved, I brought her in and will keep her in tomorrow, too. Every thread on this topic seemed to end in RIP. Thanks!