Bunsey,
As Souffle said, IT'S NOT YOUR FAULT. We are all caring hamster lovers and you wouldn't let your hamsters suffer. It's one of those things that it seems that at least one of our hamsters is always on Baytril(I want to take out shares in the company
)We learn as we go along and it's only through sites like this that you gain the knowledge to treat your hamsters when they get ill. On the syringe front, don't fill it to the top, just the right amount the vet has prescribed and distraction is definitely the best method.
Hope the sickly pair make a good recovery