You need to be treating yourself as well as your DD at the same time then treat both of you 7 days after symptoms to see if that helps. Also try something like baby biotics (it's a probiotic) to see If that helps.
Agree with this. It is pointless to treat her if you are not treating yourself as well - even with no symptoms you may still have it. I would also be looking at giving yourself some probiotics as well.