A.S.
Whoever is in charge of the group - one should reiterate the rules of being sick. Or talk with that friend honestly and nicely and sweetly - about the 24 hour rule.
And bring a can of Lysol to spray after the sick kid if mom doesn't get the hint. :)
I'm dealing with a sick kid now who I will need to bring to the doctor's tomorrow. All because my family brought their sick kid to our holiday party. Friends are one thing - but family is tougher to chew out...ugh!
Good luck! Remember, your family's health is your priority! Teach your kids also about others who are sick and how to prevent the germies!!