That's good
I hope the antibiotics clear it up. Yes I would ask the vet for more baytril now, well before you run out. 5 days isn't enough really. The Loxicom isn't essential if they miss a dose or don't get the full dose, but it's really important they get the full dose and full course of baytril or the bugs can become resistant to the antibiotic and the infection get worse. Same with humans - its why they say don't miss a dose and take the whole course.
Trouble is baytril tastes foul - it either needs disguising in some strong tasting food that will all be eaten, or some people draw a bit of runny honey into the syringe after the baytril so the hamster licks it from the syringe (they get the honey first and the nasty bit goes in as well).