My hens usually don't get sick, but 2 weeks ago one started sneezing and hasn't stopped yet, then yesterday I heard another one start sneezing as well. This is uncommon for my flock. The sneezes were frequent. I travel a lot for work and don't have time to hand feed each of them some magical herbal suppliment several times a day or do a water-soluble antibiotic every day. I know there are injections of antibiotics that lots of people use and I'd like to go that route (yes, I know I'll have to toss my eggs for a couple weeks afterwards.) I'm curious of: 1. Where to get such a vaccination. Can I order it online? If so, where? 2. Where to administer the shot on the actual hen 3. Will this be a one-time-deal or will I have to administer several doses over the course of the week? Thanks in advance!