Can DE cause a chicken to cough? Last night one of my hens were coughing every couple minutes. This morning she is not coughing at all. I spent about 10 minutes with her an she coughed once. Yesterday I put DE down in the coop and layed some scratch down for them. Later in the day when I went to their coop is was so dusty from the DE. So I am wondering could she be coughing from the DE dust or could she be sick?