I read your post about the egg white and yolk leaching out while soaking your hen in water. It sounds like a shelless egg. I recommend that you flush the inside of her vent with a vinegar/water solution to help prevent a bacterial infection. Use a large syringe (without needle) mixing 1 tablespoon of white vinegar to 1 quart of water. Use a full syringe of the mixture and insert the syringe into her vent and flush. Use about 4-5 syringe fulls, the liquid may or may not flow out of the vent afterwards. It's possible your other hen has the same issue, you can soak her as well if you wish. If she lays an egg or has a shelless egg like your other bird, forget the corid. But if there's a problem with them "fluffing," it's a possible sign of cocci. There is no egg withdrawal after using corid.