I realize that as a parent I will need to be my child's advocate at daycare and school and pursue issues that concern me.
How can I bring up issues of concern about the behavior of the staff without creating tension between me and the staff?
NOTE: My child attends a relatively small daycare and it has been my experience that the staff seems to have no trouble guessing which parents bring up which issues, so just taking things to the director doesn't avoid the issue.
EDIT: I tried to write my question to be more general and not specific to an event but since it seems I may have been too vague, here is some more background on what motivated the question. I noticed that one of the workers at my child's daycare had a cold sore and I was concerned about the risks to my child. I contacted my pediatrician with my concern and she told me that the risk was minimal as long as the worker limited close contact (e.g., kissing, hugging, etc...) and washed their hands frequently. However when I returned the next day to pick up my child I saw this worker playing in very close contact with several children and hugging and nuzzling them. When I returned home I contacted the director of the daycare and explained the situation being sure to emphasize how much I liked this particular worker but was concerned that she may not be aware of the contagion risk associated with a cold sore. The next day the worker was not working in the infant room and since then she has been very cold to me and my wife despite our having had a very warm relationship prior to this incident.