I give antibiotics if they are 3 times a day or more. I'll give one dose. I will also give Benadryl liquid and apply cream for the same reasons as Nannyde. I have one DCG with an allergy and a doctors note. She is just a mess if a bug bite goes too long without some cream.
Other than that I have a waiver to administer tylenol or advil with a same day permission email from the parents.
I think in general if they need meds they should be home.
I would be open to give any doctor's prescription that can't be worked around DC hours though.