I have been told lots of good things about Thieve's Oil. My SIL LOVES it. Never thought to use it on the hens. I am more likely to opt for natural remedies but I do realize that antibiotics do have their time and place. I have also read up on using herbs and garlic for the hens. I saved the info for future use if needed.
@Rhetts and @Minniechickmama my midwife sold Thieves and its a good one, too! It's the comparable one to doterra's OnGuard. Thieves is good stuff. Rhetts I also heard some people put dried peppermint and lavender in their coops and/or nest boxes. Peppermint repels insects and lavender is soothing. I might try that yet!
Minniechickmama I love that spray idea, I'm saving that!