it seems my poor duck has a runny nose/cold... and my other duck is recovering from scabs on her feet (i think we caught them in time, and doesn't seem to have pussed or gotten infected). but i'd like to give them some sort of antibiotic to help. They've gotten bayrtil before from their vet when they had bumblefoot/egg biding issues, but you can only get baytril with a rx. I know there are other antibiotics avaiable from feed store or over the internet, but i need a reccomendation on names and doses. any ideas or other info or advice for my ducks?