Hi, yes, I would suggest taking the acidophilus (the one I take is Webber brand and it has bifidus). Does yours say how many active cells in it? I think you're supposed to take them a few hours before or after the antibiotic. If you do a search on acidophilus with antibiotics, you should find out something.
I don't think the Danon yogurt will hurt, even if it does have sugar in it...it's good calcium.
I hope you feel better soon,
quincy