I have a 3.5 year old white leghorn that had an egg break inside her. She's slumpy the last couple of days but doesn't appear to have anything stuck in her vent and she's not swollen. She's eating, but not great and sitting a lot. I'm worried she could have an infection but I don't have access to a vet that sees chickens, but i do have some amoxicillin 125mg/5ml suspension. Any idea what dosage I could give her? Or should I try Tylan?