I'e been treating my birds with Baytril the past week.
Good that he's eating. I assume you are giving water via syringe?
I'd hold him snugly in your lap, (towel maybe?) and slip one hand under his chest, and squirt using the other hand.
I'm sorry I should of mentioned he is drinking water fine himself. I will try the towel see if he's more comfortable with it then.
Good news though the vet says he sounds better. This will be his 3rd day on it. Hes starting to popcorn again. I haven't seen that for about 2days he's just been laying in the fleece forest I made him.