I am strict with sickness and say they can't return until 48 hours after being sick. But no idea what to do about a 2 year old with a cough. Its not a constant cough, but has been same for well over a week. I have suggested mum do something about it but she says there isn't any point because she knows the doctors won't give him anything. At what point would you refuse to have him until he has been to the doctor/ the cough has cleared up?