I was told by "the old chicken farmer" at the feed store to use Sodium Sulfamethazine Solution 12.5% for my chickens a while back when one got sick. He said to not eat eggs for 10 days (they weren't laying at the time, so, no big deal) then to retreat in 30 days. We did, and last week, one finally started laying. I notice on the package, it says not to use on hens laying eggs for human consumption, and meat birds, 10 days prior to slaughter. Anyone eat eggs after using this drug, do I need to now cull my flock? Or should the 10 days be good, especially since they were not laying age when they got the meds?