how to not be rude....

Tiffany

I want to polity tell my family to not kiss my daughter on the lips. She's 18 months and always sick. She has a little red bump by her lip. I don't think it's anything but it just made me think.... Am I being to strict about this? My mother in law is a total bitch (no nice way to put it) she was coughing last time she was over and kissed her on the mouth...